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<TITLE>Mini-XML Programmers Manual, Version 2.9</TITLE>
<META NAME="author" CONTENT="Michael R. Sweet">
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<H1 ALIGN="CENTER"><A NAME="CONTENTS">Table of Contents</A></H1>
<BR>
<BR><B><A HREF="#INTRO">Introduction</A></B>
<UL>
<LI><A HREF="#1_1">Organization of This Document</A></LI>
<LI><A HREF="#1_2">Notation Conventions</A></LI>
<LI><A HREF="#1_3">Abbreviations</A></LI>
<LI><A HREF="#1_4">Other References</A></LI>
<LI><A HREF="#1_5">Legal Stuff</A></LI>
</UL>
<B><A HREF="#INSTALL">Building, Installing, and Packaging Mini-XML</A></B>
<UL>
<LI><A HREF="#2_1">Compiling Mini-XML</A>
<UL>
<LI><A HREF="#2_1_1">Compiling with Visual C++</A></LI>
<LI><A HREF="#2_1_2">Compiling with Command-Line Tools</A></LI>
</UL>
</LI>
<LI><A HREF="#2_2">Installing Mini-XML</A></LI>
<LI><A HREF="#2_3">Creating Mini-XML Packages</A></LI>
</UL>
<B><A HREF="#BASICS">Getting Started with Mini-XML</A></B>
<UL>
<LI><A HREF="#3_1">The Basics</A></LI>
<LI><A HREF="#3_2">Nodes</A>
<UL>
<LI><A HREF="#3_2_1">CDATA Nodes</A></LI>
<LI><A HREF="#3_2_2">Custom Nodes</A></LI>
<LI><A HREF="#3_2_3">Comment Nodes</A></LI>
<LI><A HREF="#3_2_4">Element Nodes</A></LI>
<LI><A HREF="#3_2_5">Integer Nodes</A></LI>
<LI><A HREF="#3_2_6">Opaque Nodes</A></LI>
<LI><A HREF="#3_2_7">Text Nodes</A></LI>
<LI><A HREF="#3_2_8">Processing Instruction Nodes</A></LI>
<LI><A HREF="#3_2_9">Real Number Nodes</A></LI>
<LI><A HREF="#3_2_10">XML Declaration Nodes</A></LI>
</UL>
</LI>
<LI><A HREF="#3_3">Creating XML Documents</A></LI>
<LI><A HREF="#3_4">Loading XML</A></LI>
<LI><A HREF="#3_5">Saving XML</A>
<UL>
<LI><A HREF="#3_5_1">Controlling Line Wrapping</A></LI>
</UL>
</LI>
<LI><A HREF="#3_6">Memory Management</A></LI>
<LI><A HREF="#3_7">Finding and Iterating Nodes</A></LI>
<LI><A HREF="#3_8">Finding Specific Nodes</A></LI>
</UL>
<B><A HREF="#ADVANCED">More Mini-XML Programming Techniques</A></B>
<UL>
<LI><A HREF="#LOAD_CALLBACKS">Load Callbacks</A></LI>
<LI><A HREF="#SAVE_CALLBACKS">Save Callbacks</A></LI>
<LI><A HREF="#4_3">Custom Data Types</A></LI>
<LI><A HREF="#4_4">Changing Node Values</A></LI>
<LI><A HREF="#4_5">Formatted Text</A></LI>
<LI><A HREF="#4_6">Indexing</A></LI>
<LI><A HREF="#4_7">SAX (Stream) Loading of Documents</A></LI>
</UL>
<B><A HREF="#MXMLDOC">Using the mxmldoc Utility</A></B>
<UL>
<LI><A HREF="#5_1">The Basics</A>
<UL>
<LI><A HREF="#5_1_1">Creating Man Pages</A></LI>
<LI><A HREF="#5_1_2">Creating Xcode Documentation Sets</A></LI>
</UL>
</LI>
<LI><A HREF="#5_2">Commenting Your Code</A></LI>
<LI><A HREF="#5_3">Titles, Sections, and Introductions</A></LI>
</UL>
<B><A HREF="#LICENSE">Mini-XML License</A></B>
<BR>
<BR><B><A HREF="#RELNOTES">Release Notes</A></B>
<UL></UL>
<B><A HREF="#REFERENCE">Library Reference</A></B>
<UL>
<LI><A HREF="#8_1">Contents</A></LI>
<LI><A HREF="#FUNCTIONS">Functions</A>
<UL>
<LI><A HREF="#mxmlAdd">mxmlAdd</A></LI>
<LI><A HREF="#mxmlDelete">mxmlDelete</A></LI>
<LI><A HREF="#8_2_3">mxmlElementDeleteAttr</A></LI>
<LI><A HREF="#mxmlElementGetAttr">mxmlElementGetAttr</A></LI>
<LI><A HREF="#mxmlElementSetAttr">mxmlElementSetAttr</A></LI>
<LI><A HREF="#8_2_6">mxmlElementSetAttrf</A></LI>
<LI><A HREF="#mxmlEntityAddCallback">mxmlEntityAddCallback</A></LI>
<LI><A HREF="#mxmlEntityGetName">mxmlEntityGetName</A></LI>
<LI><A HREF="#mxmlEntityGetValue">mxmlEntityGetValue</A></LI>
<LI><A HREF="#mxmlEntityRemoveCallback">mxmlEntityRemoveCallback</A></LI>
<LI><A HREF="#mxmlFindElement">mxmlFindElement</A></LI>
<LI><A HREF="#8_2_12">mxmlFindPath</A></LI>
<LI><A HREF="#8_2_13">mxmlGetCDATA</A></LI>
<LI><A HREF="#8_2_14">mxmlGetCustom</A></LI>
<LI><A HREF="#8_2_15">mxmlGetElement</A></LI>
<LI><A HREF="#8_2_16">mxmlGetFirstChild</A></LI>
<LI><A HREF="#8_2_17">mxmlGetInteger</A></LI>
<LI><A HREF="#8_2_18">mxmlGetLastChild</A></LI>
<LI><A HREF="#mxmlGetNextSibling">mxmlGetNextSibling</A></LI>
<LI><A HREF="#8_2_20">mxmlGetOpaque</A></LI>
<LI><A HREF="#8_2_21">mxmlGetParent</A></LI>
<LI><A HREF="#8_2_22">mxmlGetPrevSibling</A></LI>
<LI><A HREF="#8_2_23">mxmlGetReal</A></LI>
<LI><A HREF="#8_2_24">mxmlGetRefCount</A></LI>
<LI><A HREF="#8_2_25">mxmlGetText</A></LI>
<LI><A HREF="#8_2_26">mxmlGetType</A></LI>
<LI><A HREF="#8_2_27">mxmlGetUserData</A></LI>
<LI><A HREF="#mxmlIndexDelete">mxmlIndexDelete</A></LI>
<LI><A HREF="#mxmlIndexEnum">mxmlIndexEnum</A></LI>
<LI><A HREF="#mxmlIndexFind">mxmlIndexFind</A></LI>
<LI><A HREF="#8_2_31">mxmlIndexGetCount</A></LI>
<LI><A HREF="#mxmlIndexNew">mxmlIndexNew</A></LI>
<LI><A HREF="#mxmlIndexReset">mxmlIndexReset</A></LI>
<LI><A HREF="#mxmlLoadFd">mxmlLoadFd</A></LI>
<LI><A HREF="#mxmlLoadFile">mxmlLoadFile</A></LI>
<LI><A HREF="#mxmlLoadString">mxmlLoadString</A></LI>
<LI><A HREF="#8_2_37">mxmlNewCDATA</A></LI>
<LI><A HREF="#8_2_38">mxmlNewCustom</A></LI>
<LI><A HREF="#mxmlNewElement">mxmlNewElement</A></LI>
<LI><A HREF="#mxmlNewInteger">mxmlNewInteger</A></LI>
<LI><A HREF="#mxmlNewOpaque">mxmlNewOpaque</A></LI>
<LI><A HREF="#mxmlNewReal">mxmlNewReal</A></LI>
<LI><A HREF="#mxmlNewText">mxmlNewText</A></LI>
<LI><A HREF="#mxmlNewTextf">mxmlNewTextf</A></LI>
<LI><A HREF="#8_2_45">mxmlNewXML</A></LI>
<LI><A HREF="#8_2_46">mxmlRelease</A></LI>
<LI><A HREF="#mxmlRemove">mxmlRemove</A></LI>
<LI><A HREF="#8_2_48">mxmlRetain</A></LI>
<LI><A HREF="#8_2_49">mxmlSAXLoadFd</A></LI>
<LI><A HREF="#8_2_50">mxmlSAXLoadFile</A></LI>
<LI><A HREF="#8_2_51">mxmlSAXLoadString</A></LI>
<LI><A HREF="#mxmlSaveAllocString">mxmlSaveAllocString</A></LI>
<LI><A HREF="#mxmlSaveFd">mxmlSaveFd</A></LI>
<LI><A HREF="#mxmlSaveFile">mxmlSaveFile</A></LI>
<LI><A HREF="#mxmlSaveString">mxmlSaveString</A></LI>
<LI><A HREF="#8_2_56">mxmlSetCDATA</A></LI>
<LI><A HREF="#8_2_57">mxmlSetCustom</A></LI>
<LI><A HREF="#mxmlSetCustomHandlers">mxmlSetCustomHandlers</A></LI>
<LI><A HREF="#mxmlSetElement">mxmlSetElement</A></LI>
<LI><A HREF="#mxmlSetErrorCallback">mxmlSetErrorCallback</A></LI>
<LI><A HREF="#mxmlSetInteger">mxmlSetInteger</A></LI>
<LI><A HREF="#mxmlSetOpaque">mxmlSetOpaque</A></LI>
<LI><A HREF="#mxmlSetReal">mxmlSetReal</A></LI>
<LI><A HREF="#mxmlSetText">mxmlSetText</A></LI>
<LI><A HREF="#mxmlSetTextf">mxmlSetTextf</A></LI>
<LI><A HREF="#8_2_66">mxmlSetUserData</A></LI>
<LI><A HREF="#8_2_67">mxmlSetWrapMargin</A></LI>
<LI><A HREF="#mxmlWalkNext">mxmlWalkNext</A></LI>
<LI><A HREF="#mxmlWalkPrev">mxmlWalkPrev</A></LI>
</UL>
</LI>
<LI><A HREF="#TYPES">Data Types</A>
<UL>
<LI><A HREF="#mxml_custom_destroy_cb_t">mxml_custom_destroy_cb_t</A></LI>
<LI><A HREF="#mxml_custom_load_cb_t">mxml_custom_load_cb_t</A></LI>
<LI><A HREF="#mxml_custom_save_cb_t">mxml_custom_save_cb_t</A></LI>
<LI><A HREF="#mxml_entity_cb_t">mxml_entity_cb_t</A></LI>
<LI><A HREF="#mxml_error_cb_t">mxml_error_cb_t</A></LI>
<LI><A HREF="#mxml_index_t">mxml_index_t</A></LI>
<LI><A HREF="#mxml_load_cb_t">mxml_load_cb_t</A></LI>
<LI><A HREF="#mxml_node_t">mxml_node_t</A></LI>
<LI><A HREF="#mxml_save_cb_t">mxml_save_cb_t</A></LI>
<LI><A HREF="#mxml_sax_cb_t">mxml_sax_cb_t</A></LI>
<LI><A HREF="#mxml_sax_event_t">mxml_sax_event_t</A></LI>
<LI><A HREF="#mxml_type_t">mxml_type_t</A></LI>
</UL>
</LI>
<LI><A HREF="#ENUMERATIONS">Constants</A>
<UL>
<LI><A HREF="#mxml_sax_event_e">mxml_sax_event_e</A></LI>
<LI><A HREF="#mxml_type_e">mxml_type_e</A></LI>
</UL>
</LI>
</UL>
<B><A HREF="#SCHEMA">XML Schema</A></B>
<UL></UL>
<HR NOSHADE>
<H1 align="right"><A name="INTRO"><IMG align="right" alt="0" height="100"
hspace="10" src="0.gif" width="100"></A>Introduction</H1>
<P>This programmers manual describes Mini-XML version 2.9, a small XML
 parsing library that you can use to read and write XML data files in
 your C and C++ applications.</P>
<P>Mini-XML was initially developed for the <A href="http://gutenprint.sf.net/">
Gutenprint</A> project to replace the rather large and unwieldy <TT>
libxml2</TT> library with something substantially smaller and
 easier-to-use. It all began one morning in June of 2003 when Robert
 posted the following sentence to the developer's list:</P>
<BLOCKQUOTE><EM>It's bad enough that we require libxml2, but rolling our
 own XML parser is a bit more than we can handle.</EM></BLOCKQUOTE>
<P>I then replied with:</P>
<BLOCKQUOTE><EM>Given the limited scope of what you use in XML, it
 should be trivial to code a mini-XML API in a few hundred lines of
 code.</EM></BLOCKQUOTE>
<P>I took my own challenge and coded furiously for two days to produced
 the initial public release of Mini-XML, total lines of code: 696.
 Robert promptly integrated Mini-XML into Gutenprint and removed
 libxml2.</P>
<P>Thanks to lots of feedback and support from various developers,
 Mini-XML has evolved since then to provide a more complete XML
 implementation and now stands at a whopping 3,792 lines of code,
 compared to 140,410 lines of code for libxml2 version 2.9.1.</P>
<P>Aside from Gutenprint, Mini-XML is used for the following
 projects/software applications:</P>
<UL>
<LI><A href="https://www.cups.org/">CUPS</A></LI>
<LI><A href="http://zynaddsubfx.sourceforge.net">ZynAddSubFX</A></LI>
</UL>
<P>Please file a bug on msweet.org if you would like your project added
 or removed from this list, or if you have any comments/quotes you would
 like me to publish about your experiences with Mini-XML.</P>

<!-- NEED 1in -->
<H2><A NAME="1_1">Organization of This Document</A></H2>
<P>This manual is organized into the following chapters and appendices:</P>
<UL>
<LI>Chapter 1, &quot;<A href="#INSTALL">Building, Installing, and Packaging
 Mini-XML</A>&quot;, provides compilation, installation, and packaging
 instructions for Mini-XML.</LI>
<LI>Chapter 2, &quot;<A href="#BASICS">Getting Started with Mini-XML</A>&quot;,
 shows how to use the Mini-XML library in your programs.</LI>
<LI>Chapter 3, &quot;<A href="#ADVANCED">More Mini-XML Programming Techniques</A>
&quot;, shows additional ways to use the Mini-XML library.</LI>
<LI>Chapter 4, &quot;<A href="#MXMLDOC">Using the mxmldoc Utility</A>&quot;,
 describes how to use the <TT>mxmldoc(1)</TT> program to generate
 software documentation.</LI>
<LI>Appendix A, &quot;<A href="#LICENSE">Mini-XML License</A>&quot;, provides the
 terms and conditions for using and distributing Mini-XML.</LI>
<LI>Appendix B, &quot;<A href="#RELNOTES">Release Notes</A>&quot;, lists the
 changes in each release of Mini-XML.</LI>
<LI>Appendix C, &quot;<A href="#REFERENCE">Library Reference</A>&quot;, contains a
 complete reference for Mini-XML, generated by <TT>mxmldoc</TT>.</LI>
<LI>Appendix D, &quot;<A href="#SCHEMA">XML Schema</A>&quot;, shows the XML schema
 used for the XML files produced by <TT>mxmldoc</TT>.</LI>
</UL>

<!-- NEED 10 -->
<H2><A NAME="1_2">Notation Conventions</A></H2>
<P>Various font and syntax conventions are used in this guide. Examples
 and their meanings and uses are explained below:</P>
<DL>
<DT><CODE>mxmldoc</CODE>
<BR> <CODE>mxmldoc(1)</CODE></DT>
<DD>The names of commands; the first mention of a command or function in
 a chapter is followed by a manual page section number.
<BR>
<BR></DD>
<DT><VAR>/var</VAR>
<BR><VAR> /etc/hosts</VAR></DT>
<DD>File and directory names.
<BR>
<BR></DD>
<DT><TT>Request ID is Printer-123</TT></DT>
<DD>Screen output.
<BR>
<BR></DD>
<DT><KBD>lp -d printer filename ENTER</KBD></DT>
<DD>Literal user input; special keys like <KBD>ENTER</KBD> are in ALL
 CAPS.
<BR>
<BR></DD>
<DT>12.3</DT>
<DD>Numbers in the text are written using the period (.) to indicate the
 decimal point.
<BR>
<BR></DD>
</DL>

<!-- NEED 10 -->
<H2><A NAME="1_3">Abbreviations</A></H2>
<P>The following abbreviations are used throughout this manual:</P>
<DL>
<DT>Gb</DT>
<DD>Gigabytes, or 1073741824 bytes
<BR>
<BR></DD>
<DT>kb</DT>
<DD>Kilobytes, or 1024 bytes
<BR>
<BR></DD>
<DT>Mb</DT>
<DD>Megabytes, or 1048576 bytes
<BR>
<BR></DD>
<DT>UTF-8, UTF-16</DT>
<DD>Unicode Transformation Format, 8-bit or 16-bit
<BR>
<BR></DD>
<DT>W3C</DT>
<DD>World Wide Web Consortium
<BR>
<BR></DD>
<DT>XML</DT>
<DD>Extensible Markup Language
<BR>
<BR></DD>
</DL>

<!-- NEED 12 -->
<H2><A NAME="1_4">Other References</A></H2>
<DL>
<DT>The Unicode Standard, Version 4.0, Addison-Wesley, ISBN
 0-321-18578-1</DT>
<DD>The definition of the Unicode character set which is used for XML.
<BR>
<BR></DD>
<DT><A href="http://www.w3.org/TR/2004/REC-xml-20040204/">Extensible
 Markup Language (XML) 1.0 (Third Edition)</A></DT>
<DD>The XML specification from the World Wide Web Consortium (W3C)
<BR>
<BR></DD>
</DL>

<!-- NEED 6 -->
<H2><A NAME="1_5">Legal Stuff</A></H2>
<P>The Mini-XML library is copyright 2003-2014 by Michael R Sweet.
 License terms are described in <A href="#LICENSE">Appendix A - Mini-XML
 License</A>.</P>
<HR NOSHADE>
<H1 align="right"><A name="INSTALL"><IMG align="right" alt="1" height="100"
hspace="10" src="1.gif" width="100"></A>Building, Installing, and
 Packaging Mini-XML</H1>
<P>This chapter describes how to build, install, and package Mini-XML on
 your system from the source archive. You will need an ANSI/ISO-C
 compatible compiler to build Mini-XML - GCC works, as do most vendors'
 C compilers. If you are building Mini-XML on Windows, we recommend
 using the Visual C++ environment with the supplied solution file. For
 other operating systems, you'll need a POSIX-compatible shell and <TT>
make</TT> program in addition to the C compiler.</P>
<H2><A NAME="2_1">Compiling Mini-XML</A></H2>
<P>Mini-XML comes with both an autoconf-based configure script and a
 Visual C++ solution that can be used to compile the library and
 associated tools.</P>
<H3><A NAME="2_1_1">Compiling with Visual C++</A></H3>
<P>Open the<VAR> mxml.sln</VAR> solution in the<VAR> vcnet</VAR> folder.
 Choose the desired build configuration, &quot;Debug&quot; (the default) or
 &quot;Release&quot;, and then choose<VAR> Build Solution</VAR> from the<VAR>
 Build</VAR> menu.</P>
<H3><A NAME="2_1_2">Compiling with Command-Line Tools</A></H3>
<P>Type the following command to configure the Mini-XML source code for
 your system:</P>
<PRE>
    <KBD>./configure ENTER</KBD>
</PRE>
<P>The default install prefix is<VAR> /usr/local</VAR>, which can be
 overridden using the <KBD>--prefix</KBD> option:</P>
<PRE>
    <KBD>./configure --prefix=/foo ENTER</KBD>
</PRE>
<P>Other configure options can be found using the <KBD>--help</KBD>
 option:</P>
<PRE>
    <KBD>./configure --help ENTER</KBD>
</PRE>
<P>Once you have configured the software, use the <TT>make(1)</TT>
 program to do the build and run the test program to verify that things
 are working, as follows:</P>
<PRE>
    <KBD>make ENTER</KBD>
</PRE>
<H2><A NAME="2_2">Installing Mini-XML</A></H2>
<P>If you are using Visual C++, copy the<VAR> mxml.lib</VAR> and and<VAR>
 mxml.h</VAR> files to the Visual C++<VAR> lib</VAR> and<VAR> include<VAR>
 directories, respectively.</VAR></VAR></P>
<P>Otherwise, use the <TT>make</TT> command with the <KBD>install</KBD>
 target to install Mini-XML in the configured directories:</P>
<PRE>
    <KBD>make install ENTER</KBD>
</PRE>
<H2><A NAME="2_3">Creating Mini-XML Packages</A></H2>
<P>Mini-XML includes two files that can be used to create binary
 packages. The first file is<VAR> mxml.spec</VAR> which is used by the <TT>
rpmbuild(8)</TT> software to create Red Hat Package Manager (&quot;RPM&quot;)
 packages which are commonly used on Linux. Since <TT>rpmbuild</TT>
 wants to compile the software on its own, you can provide it with the
 Mini-XML tar file to build the package:</P>
<PRE>
    <KBD>rpmbuild -ta mxml-<I>version</I>.tar.gz ENTER</KBD>
</PRE>
<P>The second file is<VAR> mxml.list</VAR> which is used by the <TT>
epm(1)</TT> program to create software packages in a variety of formats.
 The <TT>epm</TT> program is available from the following URL:</P>
<PRE>
    <A href="http://www.epmhome.org/">http://www.epmhome.org/</A>
</PRE>
<P>Use the <TT>make</TT> command with the <KBD>epm</KBD> target to
 create portable and native packages for your system:</P>
<PRE>
    <KBD>make epm ENTER</KBD>
</PRE>
<P>The packages are stored in a subdirectory named<VAR> dist</VAR> for
 your convenience. The portable packages utilize scripts and tar files
 to install the software on the target system. After extracting the
 package archive, use the<VAR> mxml.install</VAR> script to install the
 software.</P>
<P>The native packages will be in the local OS's native format: RPM for
 Red Hat Linux, DPKG for Debian Linux, PKG for Solaris, and so forth.
 Use the corresponding commands to install the native packages.</P>
<HR NOSHADE>
<H1 align="right"><A name="BASICS"><IMG align="right" alt="2" height="100"
hspace="10" src="2.gif" width="100"></A>Getting Started with Mini-XML</H1>
<P>This chapter describes how to write programs that use Mini-XML to
 access data in an XML file. Mini-XML provides the following
 functionality:</P>
<UL>
<LI>Functions for creating and managing XML documents in memory.</LI>
<LI>Reading of UTF-8 and UTF-16 encoded XML files and strings.</LI>
<LI>Writing of UTF-8 encoded XML files and strings.</LI>
<LI>Support for arbitrary element names, attributes, and attribute
 values with no preset limits, just available memory.</LI>
<LI>Support for integer, real, opaque (&quot;CDATA&quot;), and text data types in
 &quot;leaf&quot; nodes.</LI>
<LI>&quot;Find&quot;, &quot;index&quot;, and &quot;walk&quot; functions for easily accessing data in
 an XML document.</LI>
</UL>
<P>Mini-XML doesn't do validation or other types of processing on the
 data based upon schema files or other sources of definition
 information, nor does it support character entities other than those
 required by the XML specification.</P>
<H2><A NAME="3_1">The Basics</A></H2>
<P>Mini-XML provides a single header file which you include:</P>
<PRE>
    #include &lt;mxml.h&gt;
</PRE>
<P>The Mini-XML library is included with your program using the <KBD>
-lmxml</KBD> option:</P>
<PRE>
    <KBD>gcc -o myprogram myprogram.c -lmxml ENTER</KBD>
</PRE>
<P>If you have the <TT>pkg-config(1)</TT> software installed, you can
 use it to determine the proper compiler and linker options for your
 installation:</P>
<PRE>
    <KBD>pkg-config --cflags mxml ENTER</KBD>
    <KBD>pkg-config --libs mxml ENTER</KBD>
</PRE>
<H2><A NAME="3_2">Nodes</A></H2>
<P>Every piece of information in an XML file is stored in memory in
 &quot;nodes&quot;. Nodes are defined by the <A href="#mxml_node_t"><TT>
mxml_node_t</TT></A> structure. Each node has a typed value, optional
 user data, a parent node, sibling nodes (previous and next), and
 potentially child nodes.</P>
<P>For example, if you have an XML file like the following:</P>
<PRE>
    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;data&gt;
        &lt;node&gt;val1&lt;/node&gt;
        &lt;node&gt;val2&lt;/node&gt;
        &lt;node&gt;val3&lt;/node&gt;
        &lt;group&gt;
            &lt;node&gt;val4&lt;/node&gt;
            &lt;node&gt;val5&lt;/node&gt;
            &lt;node&gt;val6&lt;/node&gt;
        &lt;/group&gt;
        &lt;node&gt;val7&lt;/node&gt;
        &lt;node&gt;val8&lt;/node&gt;
    &lt;/data&gt;
</PRE>
<P>the node tree for the file would look like the following in memory:</P>
<PRE>
    ?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?
      |
    data
      |
    node - node - node - group - node - node
      |      |      |      |       |      |
    val1   val2   val3     |     val7   val8
                           |
                         node - node - node
                           |      |      |
                         val4   val5   val6
</PRE>
<P>where &quot;-&quot; is a pointer to the sibling node and &quot;|&quot; is a pointer to
 the first child or parent node.</P>
<P>The <A href="#mxmlGetType"><TT>mxmlGetType</TT></A> function gets the
 type of a node, one of <TT>MXML_CUSTOM</TT>, <TT>MXML_ELEMENT</TT>, <TT>
MXML_INTEGER</TT>, <TT>MXML_OPAQUE</TT>, <TT>MXML_REAL</TT>, or <TT>
MXML_TEXT</TT>. The parent and sibling nodes are accessed using the <A href="#mxmlGetParent">
<TT>mxmlGetParent</TT></A>, <A href="#mxmlGetNext"><TT>mxmlGetNext</TT></A>
, and <A href="#mxmlGetPrevious"><TT>mxmlGetPrevious</TT></A> functions.
 The <A href="#mxmlGetUserData"><TT>mxmlGetUserData</TT></A> function
 gets any user data associated with the node.</P>
<H3><A NAME="3_2_1">CDATA Nodes</A></H3>
<P>CDATA (<TT>MXML_ELEMENT</TT>) nodes are created using the <A href="#mxmlNewCDATA">
<TT>mxmlNewCDATA</TT></A> function. The <A href="#mxmlGetCDATA"><TT>
mxmlGetCDATA</TT></A> function retrieves the CDATA string pointer for a
 node.</P>
<BLOCKQUOTE><B>Note:</B>
<P>CDATA nodes are currently stored in memory as special elements. This
 will be changed in a future major release of Mini-XML.</P>
</BLOCKQUOTE>
<H3><A NAME="3_2_2">Custom Nodes</A></H3>
<P>Custom (<TT>MXML_CUSTOM</TT>) nodes are created using the <A href="#mxmlNewCustom">
<TT>mxmlNewCustom</TT></A> function or using a custom load callback
 specified using the <A href="#mxmlSetCustomHandlers"><TT>
mxmlSetCustomHandlers</TT></A> function. The <A href="#mxmlGetCustom"><TT>
mxmlGetCustom</TT></A> function retrieves the custom value pointer for a
 node.</P>
<H3><A NAME="3_2_3">Comment Nodes</A></H3>
<P>Comment (<TT>MXML_ELEMENT</TT>) nodes are created using the <A href="#mxmlNewElement">
<TT>mxmlNewElement</TT></A> function. The <A href="#mxmlGetElement"><TT>
mxmlGetElement</TT></A> function retrieves the comment string pointer
 for a node, including the surrounding &quot;!--&quot; and &quot;--&quot; characters.</P>
<BLOCKQUOTE><B>Note:</B>
<P>Comment nodes are currently stored in memory as special elements.
 This will be changed in a future major release of Mini-XML.</P>
</BLOCKQUOTE>
<H3><A NAME="3_2_4">Element Nodes</A></H3>
<P>Element (<TT>MXML_ELEMENT</TT>) nodes are created using the <A href="#mxmlNewElement">
<TT>mxmlNewElement</TT></A> function. The <A href="#mxmlGetElement"><TT>
mxmlGetElement</TT></A> function retrieves the element name, the <A href="#mxmlElementGetAttr">
<TT>mxmlElementGetAttr</TT></A> function retrieves the value string for
 a named attribute associated with the element, and the <A href="#mxmlGetFirstChild">
<TT>mxmlGetFirstChild</TT></A> and <A href="#mxmlGetLastChild"><TT>
mxmlGetLastChild</TT></A> functions retrieve the first and last child
 nodes for the element, respectively.</P>
<H3><A NAME="3_2_5">Integer Nodes</A></H3>
<P>Integer (<TT>MXML_INTEGER</TT>) nodes are created using the <A href="#mxmlNewInteger">
<TT>mxmlNewInteger</TT></A> function. The <A href="#mxmlGetInteger"><TT>
mxmlGetInteger</TT></A> function retrieves the integer value for a node.</P>
<H3><A NAME="3_2_6">Opaque Nodes</A></H3>
<P>Opaque (<TT>MXML_OPAQUE</TT>) nodes are created using the <A href="#mxmlNewOpaque">
<TT>mxmlNewOpaque</TT></A> function. The <A href="#mxmlGetOpaque"><TT>
mxmlGetOpaque</TT></A> function retrieves the opaque string pointer for
 a node. Opaque nodes are like string nodes but preserve all whitespace
 between nodes.</P>
<H3><A NAME="3_2_7">Text Nodes</A></H3>
<P>Text (<TT>MXML_TEXT</TT>) nodes are created using the <A href="#mxmlNewText">
<TT>mxmlNewText</TT></A> and <A href="#mxmlNewTextf"><TT>mxmlNewTextf</TT>
</A> functions. Each text node consists of a text string and (leading)
 whitespace value - the <A href="#mxmlGetText"><TT>mxmlGetText</TT></A>
 function retrieves the text string pointer and whitespace value for a
 node.</P>

<!-- NEED 12 -->
<H3><A NAME="3_2_8">Processing Instruction Nodes</A></H3>
<P>Processing instruction (<TT>MXML_ELEMENT</TT>) nodes are created
 using the <A href="#mxmlNewElement"><TT>mxmlNewElement</TT></A>
 function. The <A href="#mxmlGetElement"><TT>mxmlGetElement</TT></A>
 function retrieves the processing instruction string for a node,
 including the surrounding &quot;?&quot; characters.</P>
<BLOCKQUOTE><B>Note:</B>
<P>Processing instruction nodes are currently stored in memory as
 special elements. This will be changed in a future major release of
 Mini-XML.</P>
</BLOCKQUOTE>
<H3><A NAME="3_2_9">Real Number Nodes</A></H3>
<P>Real number (<TT>MXML_REAL</TT>) nodes are created using the <A href="#mxmlNewReal">
<TT>mxmlNewReal</TT></A> function. The <A href="#mxmlGetReal"><TT>
mxmlGetReal</TT></A> function retrieves the CDATA string pointer for a
 node.</P>

<!-- NEED 15 -->
<H3><A NAME="3_2_10">XML Declaration Nodes</A></H3>
<P>XML declaration (<TT>MXML_ELEMENT</TT>) nodes are created using the <A
href="#mxmlNewXML"><TT>mxmlNewXML</TT></A> function. The <A href="#mxmlGetElement">
<TT>mxmlGetElement</TT></A> function retrieves the XML declaration
 string for a node, including the surrounding &quot;?&quot; characters.</P>
<BLOCKQUOTE><B>Note:</B>
<P>XML declaration nodes are currently stored in memory as special
 elements. This will be changed in a future major release of Mini-XML.</P>
</BLOCKQUOTE>
<!-- NEW PAGE -->
<H2><A NAME="3_3">Creating XML Documents</A></H2>
<P>You can create and update XML documents in memory using the various <TT>
mxmlNew</TT> functions. The following code will create the XML document
 described in the previous section:</P>
<PRE>
    mxml_node_t *xml;    /* &lt;?xml ... ?&gt; */
    mxml_node_t *data;   /* &lt;data&gt; */
    mxml_node_t *node;   /* &lt;node&gt; */
    mxml_node_t *group;  /* &lt;group&gt; */

    xml = mxmlNewXML(&quot;1.0&quot;);

    data = mxmlNewElement(xml, &quot;data&quot;);

        node = mxmlNewElement(data, &quot;node&quot;);
        mxmlNewText(node, 0, &quot;val1&quot;);
        node = mxmlNewElement(data, &quot;node&quot;);
        mxmlNewText(node, 0, &quot;val2&quot;);
        node = mxmlNewElement(data, &quot;node&quot;);
        mxmlNewText(node, 0, &quot;val3&quot;);

        group = mxmlNewElement(data, &quot;group&quot;);

            node = mxmlNewElement(group, &quot;node&quot;);
            mxmlNewText(node, 0, &quot;val4&quot;);
            node = mxmlNewElement(group, &quot;node&quot;);
            mxmlNewText(node, 0, &quot;val5&quot;);
            node = mxmlNewElement(group, &quot;node&quot;);
            mxmlNewText(node, 0, &quot;val6&quot;);

        node = mxmlNewElement(data, &quot;node&quot;);
        mxmlNewText(node, 0, &quot;val7&quot;);
        node = mxmlNewElement(data, &quot;node&quot;);
        mxmlNewText(node, 0, &quot;val8&quot;);
</PRE>

<!-- NEED 6 -->
<P>We start by creating the declaration node common to all XML files
 using the <A href="#mxmlNewXML"><TT>mxmlNewXML</TT></A> function:</P>
<PRE>
    xml = mxmlNewXML(&quot;1.0&quot;);
</PRE>
<P>We then create the <TT>&lt;data&gt;</TT> node used for this document using
 the <A href="#mxmlNewElement"><TT>mxmlNewElement</TT></A> function. The
 first argument specifies the parent node (<TT>xml</TT>) while the
 second specifies the element name (<TT>data</TT>):</P>
<PRE>
    data = mxmlNewElement(xml, &quot;data&quot;);
</PRE>
<P>Each <TT>&lt;node&gt;...&lt;/node&gt;</TT> in the file is created using the <TT>
mxmlNewElement</TT> and <A href="#mxmlNewText"><TT>mxmlNewText</TT></A>
 functions. The first argument of <TT>mxmlNewText</TT> specifies the
 parent node (<TT>node</TT>). The second argument specifies whether
 whitespace appears before the text - 0 or false in this case. The last
 argument specifies the actual text to add:</P>
<PRE>
    node = mxmlNewElement(data, &quot;node&quot;);
    mxmlNewText(node, 0, &quot;val1&quot;);
</PRE>
<P>The resulting in-memory XML document can then be saved or processed
 just like one loaded from disk or a string.</P>

<!-- NEED 15 -->
<H2><A NAME="3_4">Loading XML</A></H2>
<P>You load an XML file using the <A href="#mxmlLoadFile"><TT>
mxmlLoadFile</TT></A> function:</P>
<PRE>
    FILE *fp;
    mxml_node_t *tree;

    fp = fopen(&quot;filename.xml&quot;, &quot;r&quot;);
    tree = mxmlLoadFile(NULL, fp,
                        MXML_TEXT_CALLBACK);
    fclose(fp);
</PRE>
<P>The first argument specifies an existing XML parent node, if any.
 Normally you will pass <TT>NULL</TT> for this argument unless you are
 combining multiple XML sources. The XML file must contain a complete
 XML document including the <TT>?xml</TT> element if the parent node is <TT>
NULL</TT>.</P>
<P>The second argument specifies the stdio file to read from, as opened
 by <TT>fopen()</TT> or <TT>popen()</TT>. You can also use <TT>stdin</TT>
 if you are implementing an XML filter program.</P>
<P>The third argument specifies a callback function which returns the
 value type of the immediate children for a new element node: <TT>
MXML_CUSTOM</TT>, <TT>MXML_IGNORE</TT>, <TT>MXML_INTEGER</TT>, <TT>
MXML_OPAQUE</TT>, <TT>MXML_REAL</TT>, or <TT>MXML_TEXT</TT>. Load
 callbacks are described in detail in <A href="#LOAD_CALLBACKS">Chapter
 3</A>. The example code uses the <TT>MXML_TEXT_CALLBACK</TT> constant
 which specifies that all data nodes in the document contain
 whitespace-separated text values. Other standard callbacks include <TT>
MXML_IGNORE_CALLBACK</TT>, <TT>MXML_INTEGER_CALLBACK</TT>, <TT>
MXML_OPAQUE_CALLBACK</TT>, and <TT>MXML_REAL_CALLBACK</TT>.</P>
<P>The <A href="#mxmlLoadString"><TT>mxmlLoadString</TT></A> function
 loads XML node trees from a string:</P>

<!-- NEED 10 -->
<PRE>
    char buffer[8192];
    mxml_node_t *tree;

    ...
    tree = mxmlLoadString(NULL, buffer,
                          MXML_TEXT_CALLBACK);
</PRE>
<P>The first and third arguments are the same as used for <TT>
mxmlLoadFile()</TT>. The second argument specifies the string or
 character buffer to load and must be a complete XML document including
 the <TT>?xml</TT> element if the parent node is <TT>NULL</TT>.</P>

<!-- NEED 15 -->
<H2><A NAME="3_5">Saving XML</A></H2>
<P>You save an XML file using the <A href="#mxmlSaveFile"><TT>
mxmlSaveFile</TT></A> function:</P>
<PRE>
    FILE *fp;
    mxml_node_t *tree;

    fp = fopen(&quot;filename.xml&quot;, &quot;w&quot;);
    mxmlSaveFile(tree, fp, MXML_NO_CALLBACK);
    fclose(fp);
</PRE>
<P>The first argument is the XML node tree to save. It should normally
 be a pointer to the top-level <TT>?xml</TT> node in your XML document.</P>
<P>The second argument is the stdio file to write to, as opened by <TT>
fopen()</TT> or <TT>popen()</TT>. You can also use <TT>stdout</TT> if
 you are implementing an XML filter program.</P>
<P>The third argument is the whitespace callback to use when saving the
 file. Whitespace callbacks are covered in detail in <A href="SAVE_CALLBACKS">
Chapter 3</A>. The previous example code uses the <TT>MXML_NO_CALLBACK</TT>
 constant to specify that no special whitespace handling is required.</P>
<P>The <A href="#mxmlSaveAllocString"><TT>mxmlSaveAllocString</TT></A>,
 and <A href="#mxmlSaveString"><TT>mxmlSaveString</TT></A> functions
 save XML node trees to strings:</P>
<PRE>
    char buffer[8192];
    char *ptr;
    mxml_node_t *tree;

    ...
    mxmlSaveString(tree, buffer, sizeof(buffer),
                   MXML_NO_CALLBACK);

    ...
    ptr = mxmlSaveAllocString(tree, MXML_NO_CALLBACK);
</PRE>
<P>The first and last arguments are the same as used for <TT>
mxmlSaveFile()</TT>. The <TT>mxmlSaveString</TT> function takes pointer
 and size arguments for saving the XML document to a fixed-size buffer,
 while <TT>mxmlSaveAllocString()</TT> returns a string buffer that was
 allocated using <TT>malloc()</TT>.</P>

<!-- NEED 15 -->
<H3><A NAME="3_5_1">Controlling Line Wrapping</A></H3>
<P>When saving XML documents, Mini-XML normally wraps output lines at
 column 75 so that the text is readable in terminal windows. The <A href="#mxmlSetWrapMargin">
<TT>mxmlSetWrapMargin</TT></A> function overrides the default wrap
 margin:</P>
<PRE>
    /* Set the margin to 132 columns */
    mxmlSetWrapMargin(132);

    /* Disable wrapping */
    mxmlSetWrapMargin(0);
</PRE>
<H2><A NAME="3_6">Memory Management</A></H2>
<P>Once you are done with the XML data, use the <A href="#mxmlDelete"><TT>
mxmlDelete</TT></A> function to recursively free the memory that is used
 for a particular node or the entire tree:</P>
<PRE>
    mxmlDelete(tree);
</PRE>
<P>You can also use reference counting to manage memory usage. The <A href="#mxmlRetain">
<TT>mxmlRetain</TT></A> and <A href="#mxmlRelease"><TT>mxmlRelease</TT></A>
 functions increment and decrement a node's use count, respectively.
 When the use count goes to 0, <TT>mxmlRelease</TT> will automatically
 call <TT>mxmlDelete</TT> to actually free the memory used by the node
 tree. New nodes automatically start with a use count of 1.</P>

<!-- NEW PAGE-->
<H2><A NAME="3_7">Finding and Iterating Nodes</A></H2>
<P>The <A href="#mxmlWalkPrev"><TT>mxmlWalkPrev</TT></A> and <A href="#mxmlWalkNext">
<TT>mxmlWalkNext</TT></A>functions can be used to iterate through the
 XML node tree:</P>
<PRE>
    mxml_node_t *node;
    
    node = mxmlWalkPrev(current, tree,
                        MXML_DESCEND);

    node = mxmlWalkNext(current, tree,
                        MXML_DESCEND);
</PRE>
<P>In addition, you can find a named element/node using the <A href="#mxmlFindElement">
<TT>mxmlFindElement</TT></A> function:</P>
<PRE>
    mxml_node_t *node;
    
    node = mxmlFindElement(tree, tree, &quot;name&quot;,
                           &quot;attr&quot;, &quot;value&quot;,
                           MXML_DESCEND);
</PRE>
<P>The <TT>name</TT>, <TT>attr</TT>, and <TT>value</TT> arguments can be
 passed as <TT>NULL</TT> to act as wildcards, e.g.:</P>

<!-- NEED 4 -->
<PRE>
    /* Find the first &quot;a&quot; element */
    node = mxmlFindElement(tree, tree, &quot;a&quot;,
                           NULL, NULL,
                           MXML_DESCEND);
</PRE>

<!-- NEED 5 -->
<PRE>
    /* Find the first &quot;a&quot; element with &quot;href&quot;
       attribute */
    node = mxmlFindElement(tree, tree, &quot;a&quot;,
                           &quot;href&quot;, NULL,
                           MXML_DESCEND);
</PRE>

<!-- NEED 6 -->
<PRE>
    /* Find the first &quot;a&quot; element with &quot;href&quot;
       to a URL */
    node = mxmlFindElement(tree, tree, &quot;a&quot;,
                           &quot;href&quot;,
                           &quot;http://www.easysw.com/&quot;,
                           MXML_DESCEND);
</PRE>

<!-- NEED 5 -->
<PRE>
    /* Find the first element with a &quot;src&quot;
       attribute */
    node = mxmlFindElement(tree, tree, NULL,
                           &quot;src&quot;, NULL,
                           MXML_DESCEND);
</PRE>

<!-- NEED 5 -->
<PRE>
    /* Find the first element with a &quot;src&quot;
       = &quot;foo.jpg&quot; */
    node = mxmlFindElement(tree, tree, NULL,
                           &quot;src&quot;, &quot;foo.jpg&quot;,
                           MXML_DESCEND);
</PRE>
<P>You can also iterate with the same function:</P>
<PRE>
    mxml_node_t *node;

    for (node = mxmlFindElement(tree, tree,
                                &quot;name&quot;,
                                NULL, NULL,
                                MXML_DESCEND);
         node != NULL;
         node = mxmlFindElement(node, tree,
                                &quot;name&quot;,
                                NULL, NULL,
                                MXML_DESCEND))
    {
      ... do something ...
    }
</PRE>

<!-- NEED 10 -->
<P>The <TT>MXML_DESCEND</TT> argument can actually be one of three
 constants:</P>
<UL>
<LI><TT>MXML_NO_DESCEND</TT> means to not to look at any child nodes in
 the element hierarchy, just look at siblings at the same level or
 parent nodes until the top node or top-of-tree is reached.
<P>The previous node from &quot;group&quot; would be the &quot;node&quot; element to the
 left, while the next node from &quot;group&quot; would be the &quot;node&quot; element to
 the right.
<BR>
<BR></P>
</LI>
<LI><TT>MXML_DESCEND_FIRST</TT> means that it is OK to descend to the
 first child of a node, but not to descend further when searching.
 You'll normally use this when iterating through direct children of a
 parent node, e.g. all of the &quot;node&quot; and &quot;group&quot; elements under the
 &quot;?xml&quot; parent node in the example above.
<P>This mode is only applicable to the search function; the walk
 functions treat this as <TT>MXML_DESCEND</TT> since every call is a
 first time.
<BR>
<BR></P>
</LI>
<LI><TT>MXML_DESCEND</TT> means to keep descending until you hit the
 bottom of the tree. The previous node from &quot;group&quot; would be the &quot;val3&quot;
 node and the next node would be the first node element under &quot;group&quot;.
<P>If you were to walk from the root node &quot;?xml&quot; to the end of the tree
 with <TT>mxmlWalkNext()</TT>, the order would be:</P>
<P><TT>?xml data node val1 node val2 node val3 group node val4 node val5
 node val6 node val7 node val8</TT></P>
<P>If you started at &quot;val8&quot; and walked using <TT>mxmlWalkPrev()</TT>,
 the order would be reversed, ending at &quot;?xml&quot;.</P>
</LI>
</UL>
<H2><A NAME="3_8">Finding Specific Nodes</A></H2>
<P>You can find specific nodes in the tree using the <A href="#mxmlFindValue">
<TT>mxmlFindPath</TT></A>, for example:</P>
<PRE>
    mxml_node_t *value;

    value = mxmlFindPath(tree, &quot;path/to/*/foo/bar&quot;);
</PRE>
<P>The second argument is a &quot;path&quot; to the parent node. Each component of
 the path is separated by a slash (/) and represents a named element in
 the document tree or a wildcard (*) path representing 0 or more
 intervening nodes.</P>
<HR NOSHADE>
<H1 align="right"><A name="ADVANCED"><IMG align="right" alt="3" height="100"
hspace="10" src="3.gif" width="100"></A>More Mini-XML Programming
 Techniques</H1>
<P>This chapter shows additional ways to use the Mini-XML library in
 your programs.</P>
<H2><A name="LOAD_CALLBACKS">Load Callbacks</A></H2>
<P><A href="#LOAD_XML">Chapter 2</A> introduced the <A href="#mxmlLoadFile">
<TT>mxmlLoadFile()</TT></A> and <A href="#mxmlLoadString"><TT>
mxmlLoadString()</TT></A> functions. The last argument to these
 functions is a callback function which is used to determine the value
 type of each data node in an XML document.</P>
<P>Mini-XML defines several standard callbacks for simple XML data
 files:</P>
<UL>
<LI><TT>MXML_INTEGER_CALLBACK</TT> - All data nodes contain
 whitespace-separated integers.</LI>
<LI><TT>MXML_OPAQUE_CALLBACK</TT> - All data nodes contain opaque
 strings (&quot;CDATA&quot;).</LI>
<LI><TT>MXML_REAL_CALLBACK</TT> - All data nodes contain
 whitespace-separated floating-point numbers.</LI>
<LI><TT>MXML_TEXT_CALLBACK</TT> - All data nodes contain
 whitespace-separated strings.</LI>
</UL>
<P>You can provide your own callback functions for more complex XML
 documents. Your callback function will receive a pointer to the current
 element node and must return the value type of the immediate children
 for that element node: <TT>MXML_INTEGER</TT>, <TT>MXML_OPAQUE</TT>, <TT>
MXML_REAL</TT>, or <TT>MXML_TEXT</TT>. The function is called<I> after</I>
 the element and its attributes have been read, so you can look at the
 element name, attributes, and attribute values to determine the proper
 value type to return.</P>

<!-- NEED 2in -->
<P>The following callback function looks for an attribute named &quot;type&quot;
 or the element name to determine the value type for its child nodes:</P>
<PRE>
    mxml_type_t
    type_cb(mxml_node_t *node)
    {
      const char *type;

     /*
      * You can lookup attributes and/or use the
      * element name, hierarchy, etc...
      */

      type = mxmlElementGetAttr(node, &quot;type&quot;);
      if (type == NULL)
	type = mxmlGetElement(node);

      if (!strcmp(type, &quot;integer&quot;))
	return (MXML_INTEGER);
      else if (!strcmp(type, &quot;opaque&quot;))
	return (MXML_OPAQUE);
      else if (!strcmp(type, &quot;real&quot;))
	return (MXML_REAL);
      else
	return (MXML_TEXT);
    }
</PRE>
<P>To use this callback function, simply use the name when you call any
 of the load functions:</P>
<PRE>
    FILE *fp;
    mxml_node_t *tree;

    fp = fopen(&quot;filename.xml&quot;, &quot;r&quot;);
    tree = mxmlLoadFile(NULL, fp, <B>type_cb</B>);
    fclose(fp);
</PRE>
<H2><A name="SAVE_CALLBACKS">Save Callbacks</A></H2>
<P><A href="#LOAD_XML">Chapter 2</A> also introduced the <A href="#mxmlSaveFile">
<TT>mxmlSaveFile()</TT></A>, <A href="#mxmlSaveString"><TT>
mxmlSaveString()</TT></A>, and <A href="#mxmlSaveAllocString"><TT>
mxmlSaveAllocString()</TT></A> functions. The last argument to these
 functions is a callback function which is used to automatically insert
 whitespace in an XML document.</P>
<P>Your callback function will be called up to four times for each
 element node with a pointer to the node and a &quot;where&quot; value of <TT>
MXML_WS_BEFORE_OPEN</TT>, <TT>MXML_WS_AFTER_OPEN</TT>, <TT>
MXML_WS_BEFORE_CLOSE</TT>, or <TT>MXML_WS_AFTER_CLOSE</TT>. The callback
 function should return <TT>NULL</TT> if no whitespace should be added
 and the string to insert (spaces, tabs, carriage returns, and newlines)
 otherwise.</P>
<P>The following whitespace callback can be used to add whitespace to
 XHTML output to make it more readable in a standard text editor:</P>
<PRE>
    const char *
    whitespace_cb(mxml_node_t *node,
                  int where)
    {
      const char *name;

     /*
      * We can conditionally break to a new line
      * before or after any element. These are
      * just common HTML elements...
      */

      name = mxmlGetElement(node);

      if (!strcmp(name, &quot;html&quot;) ||
          !strcmp(name, &quot;head&quot;) ||
          !strcmp(name, &quot;body&quot;) ||
	  !strcmp(name, &quot;pre&quot;) ||
          !strcmp(name, &quot;p&quot;) ||
	  !strcmp(name, &quot;h1&quot;) ||
          !strcmp(name, &quot;h2&quot;) ||
          !strcmp(name, &quot;h3&quot;) ||
	  !strcmp(name, &quot;h4&quot;) ||
          !strcmp(name, &quot;h5&quot;) ||
          !strcmp(name, &quot;h6&quot;))
      {
       /*
	* Newlines before open and after
        * close...
	*/

	if (where == MXML_WS_BEFORE_OPEN ||
            where == MXML_WS_AFTER_CLOSE)
	  return (&quot;\n&quot;);
      }
      else if (!strcmp(name, &quot;dl&quot;) ||
               !strcmp(name, &quot;ol&quot;) ||
               !strcmp(name, &quot;ul&quot;))
      {
       /*
	* Put a newline before and after list
        * elements...
	*/

	return (&quot;\n&quot;);
      }
      else if (!strcmp(name, &quot;dd&quot;) ||
               !strcmp(name, &quot;dt&quot;) ||
               !strcmp(name, &quot;li&quot;))
      {
       /*
	* Put a tab before &lt;li&gt;'s, * &lt;dd&gt;'s,
        * and &lt;dt&gt;'s, and a newline after them...
	*/

	if (where == MXML_WS_BEFORE_OPEN)
	  return (&quot;\t&quot;);
	else if (where == MXML_WS_AFTER_CLOSE)
	  return (&quot;\n&quot;);
      }

     /*
      * Return NULL for no added whitespace...
      */

      return (NULL);
    }
</PRE>
<P>To use this callback function, simply use the name when you call any
 of the save functions:</P>
<PRE>
    FILE *fp;
    mxml_node_t *tree;

    fp = fopen(&quot;filename.xml&quot;, &quot;w&quot;);
    mxmlSaveFile(tree, fp, <B>whitespace_cb</B>);
    fclose(fp);
</PRE>

<!-- NEED 10 -->
<H2><A NAME="4_3">Custom Data Types</A></H2>
<P>Mini-XML supports custom data types via global load and save
 callbacks. Only a single set of callbacks can be active at any time,
 however your callbacks can store additional information in order to
 support multiple custom data types as needed. The <TT>MXML_CUSTOM</TT>
 node type identifies custom data nodes.</P>
<P>The load callback receives a pointer to the current data node and a
 string of opaque character data from the XML source with character
 entities converted to the corresponding UTF-8 characters. For example,
 if we wanted to support a custom date/time type whose value is encoded
 as &quot;yyyy-mm-ddThh:mm:ssZ&quot; (ISO format), the load callback would look
 like the following:</P>
<PRE>
    typedef struct
    {
      unsigned      year,    /* Year */
                    month,   /* Month */
                    day,     /* Day */
                    hour,    /* Hour */
                    minute,  /* Minute */
                    second;  /* Second */
      time_t        unix;    /* UNIX time */
    } iso_date_time_t;

    int
    load_custom(mxml_node_t *node,
                const char *data)
    {
      iso_date_time_t *dt;
      struct tm tmdata;

     /*
      * Allocate data structure...
      */

      dt = calloc(1, sizeof(iso_date_time_t));

     /*
      * Try reading 6 unsigned integers from the
      * data string...
      */

      if (sscanf(data, &quot;%u-%u-%uT%u:%u:%uZ&quot;,
                 &amp;(dt-&gt;year), &amp;(dt-&gt;month),
                 &amp;(dt-&gt;day), &amp;(dt-&gt;hour),
                 &amp;(dt-&gt;minute),
                 &amp;(dt-&gt;second)) != 6)
      {
       /*
        * Unable to read numbers, free the data
        * structure and return an error...
        */

        free(dt);

        return (-1);
      }

     /*
      * Range check values...
      */

      if (dt-&gt;month &lt;1 || dt-&gt;month &gt; 12 ||
          dt-&gt;day  &lt;1 || dt-&gt;day &gt; 31 ||
          dt-&gt;hour  &lt;0 || dt-&gt;hour &gt; 23 ||
          dt-&gt;minute  &lt;0 || dt-&gt;minute &gt; 59 ||
          dt-&gt;second  &lt;0 || dt-&gt;second &gt; 59)
      {
       /*
        * Date information is out of range...
        */

        free(dt);

        return (-1);
      }

     /*
      * Convert ISO time to UNIX time in
      * seconds...
      */

      tmdata.tm_year = dt-&gt;year - 1900;
      tmdata.tm_mon  = dt-&gt;month - 1;
      tmdata.tm_day  = dt-&gt;day;
      tmdata.tm_hour = dt-&gt;hour;
      tmdata.tm_min  = dt-&gt;minute;
      tmdata.tm_sec  = dt-&gt;second;

      dt-&gt;unix = gmtime(&amp;tmdata);

     /*
      * Assign custom node data and destroy
      * function pointers...
      */

      mxmlSetCustom(node, data, destroy);

     /*
      * Return with no errors...
      */

      return (0);
    }
</PRE>
<P>The function itself can return 0 on success or -1 if it is unable to
 decode the custom data or the data contains an error. Custom data nodes
 contain a <TT>void</TT> pointer to the allocated custom data for the
 node and a pointer to a destructor function which will free the custom
 data when the node is deleted.</P>

<!-- NEED 15 -->
<P>The save callback receives the node pointer and returns an allocated
 string containing the custom data value. The following save callback
 could be used for our ISO date/time type:</P>
<PRE>
    char *
    save_custom(mxml_node_t *node)
    {
      char data[255];
      iso_date_time_t *dt;


      dt = (iso_date_time_t *)mxmlGetCustom(node);

      snprintf(data, sizeof(data),
               &quot;%04u-%02u-%02uT%02u:%02u:%02uZ&quot;,
               dt-&gt;year, dt-&gt;month, dt-&gt;day,
               dt-&gt;hour, dt-&gt;minute, dt-&gt;second);

      return (strdup(data));
    }
</PRE>
<P>You register the callback functions using the <A href="#mxmlSetCustomHandlers">
<TT>mxmlSetCustomHandlers()</TT></A> function:</P>
<PRE>
    mxmlSetCustomHandlers(<B>load_custom</B>,
                          <B>save_custom</B>);
</PRE>

<!-- NEED 20 -->
<H2><A NAME="4_4">Changing Node Values</A></H2>
<P>All of the examples so far have concentrated on creating and loading
 new XML data nodes. Many applications, however, need to manipulate or
 change the nodes during their operation, so Mini-XML provides functions
 to change node values safely and without leaking memory.</P>
<P>Existing nodes can be changed using the <A href="#mxmlSetElement"><TT>
mxmlSetElement()</TT></A>, <A href="#mxmlSetInteger"><TT>
mxmlSetInteger()</TT></A>, <A href="#mxmlSetOpaque"><TT>mxmlSetOpaque()</TT>
</A>, <A href="#mxmlSetReal"><TT>mxmlSetReal()</TT></A>, <A href="#mxmlSetText">
<TT>mxmlSetText()</TT></A>, and <A href="#mxmlSetTextf"><TT>
mxmlSetTextf()</TT></A> functions. For example, use the following
 function call to change a text node to contain the text &quot;new&quot; with
 leading whitespace:</P>
<PRE>
    mxml_node_t *node;

    mxmlSetText(node, 1, &quot;new&quot;);
</PRE>
<H2><A NAME="4_5">Formatted Text</A></H2>
<P>The <A href="#mxmlNewTextf"><TT>mxmlNewTextf()</TT></A> and <A href="#mxmlSetTextf">
<TT>mxmlSetTextf()</TT></A> functions create and change text nodes,
 respectively, using <TT>printf</TT>-style format strings and arguments.
 For example, use the following function call to create a new text node
 containing a constructed filename:</P>
<PRE>
    mxml_node_t *node;

    node = mxmlNewTextf(node, 1, &quot;%s/%s&quot;,
                        path, filename);
</PRE>
<H2><A NAME="4_6">Indexing</A></H2>
<P>Mini-XML provides functions for managing indices of nodes. The
 current implementation provides the same functionality as <A href="#mxmlFindElement">
<TT>mxmlFindElement()</TT></A>. The advantage of using an index is that
 searching and enumeration of elements is significantly faster. The only
 disadvantage is that each index is a static snapshot of the XML
 document, so indices are not well suited to XML data that is updated
 more often than it is searched. The overhead of creating an index is
 approximately equal to walking the XML document tree. Nodes in the
 index are sorted by element name and attribute value.</P>
<P>Indices are stored in <A href="#mxml_index_t"><TT>mxml_index_t</TT></A>
 structures. The <A href="#mxmlIndexNew"><TT>mxmlIndexNew()</TT></A>
 function creates a new index:</P>
<PRE>
    mxml_node_t *tree;
    mxml_index_t *ind;

    ind = mxmlIndexNew(tree, &quot;element&quot;,
                       &quot;attribute&quot;);
</PRE>
<P>The first argument is the XML node tree to index. Normally this will
 be a pointer to the <TT>?xml</TT> element.</P>
<P>The second argument contains the element to index; passing <TT>NULL</TT>
 indexes all element nodes alphabetically.</P>
<P>The third argument contains the attribute to index; passing <TT>NULL</TT>
 causes only the element name to be indexed.</P>
<P>Once the index is created, the <A href="#mxmlIndexEnum"><TT>
mxmlIndexEnum()</TT></A>, <A href="#mxmlIndexFind"><TT>mxmlIndexFind()</TT>
</A>, and <A href="#mxmlIndexReset"><TT>mxmlIndexReset()</TT></A>
 functions are used to access the nodes in the index. The <A href="#mxmlIndexReset">
<TT>mxmlIndexReset()</TT></A> function resets the &quot;current&quot; node pointer
 in the index, allowing you to do new searches and enumerations on the
 same index. Typically you will call this function prior to your calls
 to <A href="#mxmlIndexEnum"><TT>mxmlIndexEnum()</TT></A> and <A href="#mxmlIndexFind">
<TT>mxmlIndexFind()</TT></A>.</P>
<P>The <A href="#mxmlIndexEnum"><TT>mxmlIndexEnum()</TT></A> function
 enumerates each of the nodes in the index and can be used in a loop as
 follows:</P>
<PRE>
    mxml_node_t *node;

    mxmlIndexReset(ind);

    while ((node = mxmlIndexEnum(ind)) != NULL)
    {
      // do something with node
    }
</PRE>
<P>The <A href="#mxmlIndexFind"><TT>mxmlIndexFind()</TT></A> function
 locates the next occurrence of the named element and attribute value in
 the index. It can be used to find all matching elements in an index, as
 follows:</P>
<PRE>
    mxml_node_t *node;

    mxmlIndexReset(ind);

    while ((node = mxmlIndexFind(ind, &quot;element&quot;,
                                 &quot;attr-value&quot;))
                != NULL)
    {
      // do something with node
    }
</PRE>
<P>The second and third arguments represent the element name and
 attribute value, respectively. A <TT>NULL</TT> pointer is used to
 return all elements or attributes in the index. Passing <TT>NULL</TT>
 for both the element name and attribute value is equivalent to calling <TT>
mxmlIndexEnum</TT>.</P>
<P>When you are done using the index, delete it using the <A href="#mxmlIndexDelete()">
<TT>mxmlIndexDelete()</TT></A> function:</P>
<PRE>
    mxmlIndexDelete(ind);
</PRE>
<H2><A NAME="4_7">SAX (Stream) Loading of Documents</A></H2>
<P>Mini-XML supports an implementation of the Simple API for XML (SAX)
 which allows you to load and process an XML document as a stream of
 nodes. Aside from allowing you to process XML documents of any size,
 the Mini-XML implementation also allows you to retain portions of the
 document in memory for later processing.</P>
<P>The <A href="#mxmlSAXLoad"><TT>mxmlSAXLoadFd</TT></A>, <A href="#mxmlSAXLoadFile">
<TT>mxmlSAXLoadFile</TT></A>, and <A href="#mxmlSAXLoadString"><TT>
mxmlSAXLoadString</TT></A> functions provide the SAX loading APIs. Each
 function works like the corresponding <TT>mxmlLoad</TT> function but
 uses a callback to process each node as it is read.</P>
<P>The callback function receives the node, an event code, and a user
 data pointer you supply:</P>
<PRE>
    void
    sax_cb(mxml_node_t *node,
           mxml_sax_event_t event,
           void *data)
    {
      ... do something ...
    }
</PRE>
<P>The event will be one of the following:</P>
<UL>
<LI><TT>MXML_SAX_CDATA</TT> - CDATA was just read</LI>
<LI><TT>MXML_SAX_COMMENT</TT> - A comment was just read</LI>
<LI><TT>MXML_SAX_DATA</TT> - Data (custom, integer, opaque, real, or
 text) was just read</LI>
<LI><TT>MXML_SAX_DIRECTIVE</TT> - A processing directive was just read</LI>
<LI><TT>MXML_SAX_ELEMENT_CLOSE</TT> - A close element was just read (<TT>
&lt;/element&gt;</TT>)</LI>
<LI><TT>MXML_SAX_ELEMENT_OPEN</TT> - An open element was just read (<TT>
&lt;element&gt;</TT>)</LI>
</UL>
<P>Elements are<EM> released</EM> after the close element is processed.
 All other nodes are released after they are processed. The SAX callback
 can<EM> retain</EM> the node using the <A href="#mxmlRetain"><TT>
mxmlRetain</TT></A> function. For example, the following SAX callback
 will retain all nodes, effectively simulating a normal in-memory load:</P>
<PRE>
    void
    sax_cb(mxml_node_t *node,
           mxml_sax_event_t event,
           void *data)
    {
      if (event != MXML_SAX_ELEMENT_CLOSE)
        mxmlRetain(node);
    }
</PRE>
<P>More typically the SAX callback will only retain a small portion of
 the document that is needed for post-processing. For example, the
 following SAX callback will retain the title and headings in an XHTML
 file. It also retains the (parent) elements like <TT>&lt;html&gt;</TT>, <TT>
&lt;head&gt;</TT>, and <TT>&lt;body&gt;</TT>, and processing directives like <TT>
&lt;?xml ... ?&gt;</TT> and <TT>&lt;!DOCTYPE ... &gt;</TT>:</P>

<!-- NEED 10 -->
<PRE>
    void
    sax_cb(mxml_node_t *node,
           mxml_sax_event_t event,
           void *data)
    {
      if (event == MXML_SAX_ELEMENT_OPEN)
      {
       /*
        * Retain headings and titles...
        */

        char *name = mxmlGetElement(node);

        if (!strcmp(name, &quot;html&quot;) ||
            !strcmp(name, &quot;head&quot;) ||
            !strcmp(name, &quot;title&quot;) ||
            !strcmp(name, &quot;body&quot;) ||
            !strcmp(name, &quot;h1&quot;) ||
            !strcmp(name, &quot;h2&quot;) ||
            !strcmp(name, &quot;h3&quot;) ||
            !strcmp(name, &quot;h4&quot;) ||
            !strcmp(name, &quot;h5&quot;) ||
            !strcmp(name, &quot;h6&quot;))
          mxmlRetain(node);
      }
      else if (event == MXML_SAX_DIRECTIVE)
        mxmlRetain(node);
      else if (event == MXML_SAX_DATA)
      {
        if (mxmlGetRefCount(mxmlGetParent(node)) &gt; 1)
        {
         /*
          * If the parent was retained, then retain
          * this data node as well.
          */

          mxmlRetain(node);
        }
      }
    }
</PRE>
<P>The resulting skeleton document tree can then be searched just like
 one loaded using the <TT>mxmlLoad</TT> functions. For example, a filter
 that reads an XHTML document from stdin and then shows the title and
 headings in the document would look like:</P>
<PRE>
    mxml_node_t *doc, *title, *body, *heading;

    doc = mxmlSAXLoadFd(NULL, 0,
                        MXML_TEXT_CALLBACK,
                        <B>sax_cb</B>, NULL);

    title = mxmlFindElement(doc, doc, &quot;title&quot;,
                            NULL, NULL,
                            MXML_DESCEND);

    if (title)
      print_children(title);

    body = mxmlFindElement(doc, doc, &quot;body&quot;,
                           NULL, NULL,
                           MXML_DESCEND);

    if (body)
    {
      for (heading = mxmlGetFirstChild(body);
           heading;
           heading = mxmlGetNextSibling(heading))
        print_children(heading);
    }
</PRE>
<HR NOSHADE>
<H1 align="right"><A name="MXMLDOC"><IMG align="right" alt="4" height="100"
hspace="10" src="4.gif" width="100"></A>Using the mxmldoc Utility</H1>
<P>This chapter describes how to use <TT>mxmldoc(1)</TT> program to
 automatically generate documentation from C and C++ source files.</P>
<H2><A NAME="5_1">The Basics</A></H2>
<P>Originally developed to generate the Mini-XML and CUPS API
 documentation, <TT>mxmldoc</TT> is now a general-purpose utility which
 scans C and C++ source files to produce HTML and man page documentation
 along with an XML file representing the functions, types, and
 definitions in those source files. Unlike popular documentation
 generators like Doxygen or Javadoc, <TT>mxmldoc</TT> uses in-line
 comments rather than comment headers, allowing for more &quot;natural&quot; code
 documentation.</P>
<P>By default, <TT>mxmldoc</TT> produces HTML documentation. For
 example, the following command will scan all of the C source and header
 files in the current directory and produce a HTML documentation file
 called<VAR> filename.html</VAR>:</P>
<PRE>
    <KBD>mxmldoc *.h *.c &gt;filename.html ENTER</KBD>
</PRE>
<P>You can also specify an XML file to create which contains all of the
 information from the source files. For example, the following command
 creates an XML file called<VAR> filename.xml</VAR> in addition to the
 HTML file:</P>
<PRE>
    <KBD>mxmldoc filename.xml *.h *.c &gt;filename.html ENTER</KBD>
</PRE>
<P>The <TT>--no-output</TT> option disables the normal HTML output:</P>
<PRE>
    <KBD>mxmldoc --no-output filename.xml *.h *.c ENTER</KBD>
</PRE>
<P>You can then run <TT>mxmldoc</TT> again with the XML file alone to
 generate the HTML documentation:</P>
<PRE>
    <KBD>mxmldoc filename.xml &gt;filename.html ENTER</KBD>
</PRE>
<H3><A NAME="5_1_1">Creating Man Pages</A></H3>
<P>The <TT>--man filename</TT> option tells <TT>mxmldoc</TT> to create a
 man page instead of HTML documentation, for example:</P>
<PRE>
    <KBD>mxmldoc --man filename filename.xml \
        &gt;filename.man ENTER</KBD>

    <KBD>mxmldoc --man filename *.h *.c \
        &gt;filename.man ENTER</KBD>
</PRE>
<H3><A NAME="5_1_2">Creating Xcode Documentation Sets</A></H3>
<P>The <TT>--docset directory.docset</TT> option tells <TT>mxmldoc</TT>
 to create an Xcode documentation set containing the HTML documentation,
 for example:</P>
<PRE>
    <KBD>mxmldoc --docset foo.docset *.h *.c foo.xml ENTER</KBD>
</PRE>
<P>Xcode documentation sets can only be built on Mac OS X with Xcode 3.0
 or higher installed.</P>
<H2><A NAME="5_2">Commenting Your Code</A></H2>
<P>As noted previously, <TT>mxmldoc</TT> looks for in-line comments to
 describe the functions, types, and constants in your code. <TT>Mxmldoc</TT>
 will document all public names it finds in your source files - any
 names starting with the underscore character (_) or names that are
 documented with the <A HREF="#ATDIRECTIVES">@private@</A> directive are
 treated as private and are not documented.</P>
<P>Comments appearing directly before a function or type definition are
 used to document that function or type. Comments appearing after
 argument, definition, return type, or variable declarations are used to
 document that argument, definition, return type, or variable. For
 example, the following code excerpt defines a key/value structure and a
 function that creates a new instance of that structure:</P>
<PRE>
    /* A key/value pair. This is used with the
       dictionary structure. */

    struct keyval
    {
      char *key; /* Key string */
      char *val; /* Value string */
    };

    /* Create a new key/value pair. */

    struct keyval * /* New key/value pair */
    new_keyval(
        const char *key, /* Key string */
	const char *val) /* Value string */
    {
      ...
    }
</PRE>
<P><TT>Mxmldoc</TT> also knows to remove extra asterisks (*) from the
 comment string, so the comment string:</P>
<PRE>
    /*
     * Compute the value of PI.
     *
     * The function connects to an Internet server
     * that streams audio of mathematical monks
     * chanting the first 100 digits of PI.
     */
</PRE>
<P>will be shown as:</P>
<PRE>
    Compute the value of PI.

    The function connects to an Internet server
    that streams audio of mathematical monks
    chanting the first 100 digits of PI.
</PRE>
<P><A name="ATDIRECTIVES">Comments</A> can also include the following
 special <TT>@name ...@</TT> directive strings:</P>
<UL>
<LI><TT>@deprecated@</TT> - flags the item as deprecated to discourage
 its use</LI>
<LI><TT>@private@</TT> - flags the item as private so it will not be
 included in the documentation</LI>
<LI><TT>@since ...@</TT> - flags the item as new since a particular
 release. The text following the <TT>@since</TT> up to the closing <TT>@</TT>
 is highlighted in the generated documentation, e.g. <TT>@since Mini-XML
 2.7@</TT>.</LI>
</UL>

<!-- NEED 10 -->
<H2><A NAME="5_3">Titles, Sections, and Introductions</A></H2>
<P><TT>Mxmldoc</TT> also provides options to set the title, section, and
 introduction text for the generated documentation. The <TT>--title text</TT>
 option specifies the title for the documentation. The title string is
 usually put in quotes:</P>
<PRE>
    <KBD>mxmldoc filename.xml \
        --title &quot;My Famous Documentation&quot; \
        &gt;filename.html ENTER</KBD>
</PRE>
<P>The <TT>--section name</TT> option specifies the section for the
 documentation. For HTML documentation, the name is placed in a HTML
 comment such as:</P>
<PRE>
    &lt;!-- SECTION: name --&gt;
</PRE>
<P>For man pages, the section name is usually just a number (&quot;3&quot;), or a
 number followed by a vendor name (&quot;3acme&quot;). The section name is used in
 the <TT>.TH</TT> directive in the man page:</P>
<PRE>
    .TH mylibrary 3acme &quot;My Title&quot; ...
</PRE>
<P>The default section name for man page output is &quot;3&quot;. There is no
 default section name for HTML output.</P>
<P>Finally, the <TT>--intro filename</TT> option specifies a file to
 embed after the title and section but before the generated
 documentation. For HTML documentation, the file must consist of valid
 HTML without the usual <TT>DOCTYPE</TT>, <TT>html</TT>, and <TT>body</TT>
 elements. For man page documentation, the file must consist of valid <TT>
nroff(1)</TT> text.</P>
<HR NOSHADE>
<H1 align="right"><A name="LICENSE"><IMG align="right" alt="A" height="100"
hspace="10" src="A.gif" width="100"></A>Mini-XML License</H1>
<P>The Mini-XML library and included programs are provided under the
 terms of the GNU Library General Public License version 2 (LGPL2) with
 the following exceptions:</P>
<P><B>1.</B> Static linking of applications to the Mini-XML library does
 not constitute a derivative work and does not require the author to
 provide source code for the application, use the shared Mini-XML
 libraries, or link their applications against a user-supplied version
 of Mini-XML.</P>
<P><I>If you link the application to a modified version of Mini-XML,
 then the changes to Mini-XML must be provided under the terms of the
 LGPL2 in sections 1, 2, and 4.</I></P>
<P><B>2.</B> You do not have to provide a copy of the Mini-XML license
 with programs that are linked to the Mini-XML library, nor do you have
 to identify the Mini-XML license in your program or documentation as
 required by section 6 of the LGPL2.</P>
<P>&nbsp;</P>
<P align="center"><B>GNU LIBRARY GENERAL PUBLIC LICENSE</B></P>
<P align="center">Version 2, June 1991
<BR> Copyright (C) 1991 Free Software Foundation, Inc.
<BR> 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
<BR> Everyone is permitted to copy and distribute verbatim copies of
 this license document, but changing it is not allowed.
<BR> [This is the first released version of the library GPL. It is
 numbered 2 because it goes with version 2 of the ordinary GPL.]</P>
<P><B>Preamble</B></P>
<P>The licenses for most software are designed to take away your freedom
 to share and change it. By contrast, the GNU General Public Licenses
 are intended to guarantee your freedom to share and change free
 software--to make sure the software is free for all its users.</P>
<P>This license, the Library General Public License, applies to some
 specially designated Free Software Foundation software, and to any
 other libraries whose authors decide to use it. You can use it for your
 libraries, too.</P>
<P>When we speak of free software, we are referring to freedom, not
 price. Our General Public Licenses are designed to make sure that you
 have the freedom to distribute copies of free software (and charge for
 this service if you wish), that you receive source code or can get it
 if you want it, that you can change the software or use pieces of it in
 new free programs; and that you know you can do these things.</P>
<P>To protect your rights, we need to make restrictions that forbid
 anyone to deny you these rights or to ask you to surrender the rights.
 These restrictions translate to certain responsibilities for you if you
 distribute copies of the library, or if you modify it.</P>
<P>For example, if you distribute copies of the library, whether gratis
 or for a fee, you must give the recipients all the rights that we gave
 you. You must make sure that they, too, receive or can get the source
 code. If you link a program with the library, you must provide complete
 object files to the recipients so that they can relink them with the
 library, after making changes to the library and recompiling it. And
 you must show them these terms so they know their rights.</P>
<P>Our method of protecting your rights has two steps: (1) copyright the
 library, and (2) offer you this license which gives you legal
 permission to copy, distribute and/or modify the library.</P>
<P>Also, for each distributor's protection, we want to make certain that
 everyone understands that there is no warranty for this free library.
 If the library is modified by someone else and passed on, we want its
 recipients to know that what they have is not the original version, so
 that any problems introduced by others will not reflect on the original
 authors' reputations.</P>
<P>Finally, any free program is threatened constantly by software
 patents. We wish to avoid the danger that companies distributing free
 software will individually obtain patent licenses, thus in effect
 transforming the program into proprietary software. To prevent this, we
 have made it clear that any patent must be licensed for everyone's free
 use or not licensed at all.</P>
<P>Most GNU software, including some libraries, is covered by the
 ordinary GNU General Public License, which was designed for utility
 programs. This license, the GNU Library General Public License, applies
 to certain designated libraries. This license is quite different from
 the ordinary one; be sure to read it in full, and don't assume that
 anything in it is the same as in the ordinary license.</P>
<P>The reason we have a separate public license for some libraries is
 that they blur the distinction we usually make between modifying or
 adding to a program and simply using it. Linking a program with a
 library, without changing the library, is in some sense simply using
 the library, and is analogous to running a utility program or
 application program. However, in a textual and legal sense, the linked
 executable is a combined work, a derivative of the original library,
 and the ordinary General Public License treats it as such.</P>
<P>Because of this blurred distinction, using the ordinary General
 Public License for libraries did not effectively promote software
 sharing, because most developers did not use the libraries. We
 concluded that weaker conditions might promote sharing better.</P>
<P>However, unrestricted linking of non-free programs would deprive the
 users of those programs of all benefit from the free status of the
 libraries themselves. This Library General Public License is intended
 to permit developers of non-free programs to use free libraries, while
 preserving your freedom as a user of such programs to change the free
 libraries that are incorporated in them. (We have not seen how to
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<HR NOSHADE>
<H1 align="right"><A name="RELNOTES"><IMG align="right" alt="B" height="100"
hspace="10" src="B.gif" width="100"></A>Release Notes</H1>
<H2><A NAME="7_1">Changes in Mini-XML 2.9</A></H2>
<UL>
<LI>mxmlLoad* did not correctly load value nodes with MXML_NO_CALLBACK
 or MXML_TEXT_CALLBACK (Bug #502)</LI>
</UL>
<H2><A NAME="7_2">Changes in Mini-XML 2.8</A></H2>
<UL>
<LI>Now call docsetutil using xcrun on OS X (Bug #458)</LI>
<LI>mxmldoc did not escape special HTML characters inside @code foo@
 comments.</LI>
<LI>Fixed a memory leak in mxmlElementDeleteAttr (Bug #452)</LI>
<LI>Added MXML_MAJOR/MINOR_VERSION definitions to mxml.h (Bug $461)</LI>
<LI>Fixed a bug reading UTF-16 characters from a file (Bug #454)</LI>
<LI>Fixed a memory leak when loading invalid XML (Bug #496)</LI>
<LI>Fixed an XML fragment loading problem (Bug #494)</LI>
</UL>
<H2><A NAME="7_3">Changes in Mini-XML 2.7</A></H2>
<UL>
<LI>Added 64-bit configurations to the VC++ project files (STR #129)</LI>
<LI>Fixed conformance of mxmldoc's HTML and CSS output.</LI>
<LI>Added data accessor (&quot;get&quot;) functions and made the mxml_node_t and
 mxml_index_t structures private but still available in the Mini-XML
 header to preserve source compatibility (STR #118)</LI>
<LI>Updated the source headers to reference the Mini-XML license and its
 exceptions to the LGPL2 (STR #108)</LI>
<LI>Added a new mxmlFindPath() function to find the value node of a
 named element (STR #110)</LI>
<LI>Building a static version of the library did not work on Windows
 (STR #112)</LI>
<LI>The shared library did not include a destructor for the thread-
 specific data key on UNIX-based operating systems (STR #103)</LI>
<LI>mxmlLoad* did not error out on XML with multiple root nodes (STR
 #101)</LI>
<LI>Fixed an issue with the _mxml_vstrdupf function (STR #107)</LI>
<LI>mxmlSave* no longer write all siblings of the passed node, just that
 node and its children (STR #109)</LI>
</UL>
<H2><A NAME="7_4">Changes in Mini-XML 2.6</A></H2>
<UL>
<LI>Documentation fixes (STR #91, STR #92)</LI>
<LI>The mxmldoc program did not handle typedef comments properly (STR
 #72)</LI>
<LI>Added support for &quot;long long&quot; printf formats.</LI>
<LI>The XML parser now ignores BOMs in UTF-8 XML files (STR #89)</LI>
<LI>The mxmldoc program now supports generating Xcode documentation
 sets.</LI>
<LI>mxmlSave*() did not output UTF-8 correctly on some platforms.</LI>
<LI>mxmlNewXML() now adds encoding=&quot;utf-8&quot; in the ?xml directive to
 avoid problems with non-conformant XML parsers that assume something
 other than UTF-8 as the default encoding.</LI>
<LI>Wrapping was not disabled when mxmlSetWrapMargin(0) was called, and
 &quot;&lt;?xml ... ?&gt;&quot; was always followed by a newline (STR #76)</LI>
<LI>The mxml.pc.in file was broken (STR #79)</LI>
<LI>The mxmldoc program now handles &quot;typedef enum name {} name&quot;
 correctly (STR #72)</LI>
</UL>
<H2><A NAME="7_5">Changes in Mini-XML 2.5</A></H2>
<UL>
<LI>The mxmldoc program now makes greater use of CSS and supports a
 --css option to embed an alternate stylesheet.</LI>
<LI>The mxmldoc program now supports --header and --footer options to
 insert documentation content before and after the generated content.</LI>
<LI>The mxmldoc program now supports a --framed option to generate
 framed HTML output.</LI>
<LI>The mxmldoc program now creates a table of contents including any
 headings in the --intro file when generating HTML output.</LI>
<LI>The man pages and man page output from mxmldoc did not use &quot;\-&quot; for
 dashes (STR #68)</LI>
<LI>The debug version of the Mini-XML DLL could not be built (STR #65)</LI>
<LI>Processing instructions and directives did not work when not at the
 top level of a document (STR #67)</LI>
<LI>Spaces around the &quot;=&quot; in attributes were not supported (STR #67)</LI>
</UL>
<H2><A NAME="7_6">Changes in Mini-XML 2.4</A></H2>
<UL>
<LI>Fixed shared library build problems on HP-UX and Mac OS X.</LI>
<LI>The mxmldoc program did not output argument descriptions for
 functions properly.</LI>
<LI>All global settings (custom, error, and entity callbacks and the
 wrap margin) are now managed separately for each thread.</LI>
<LI>Added mxmlElementDeleteAttr() function (STR #59)</LI>
<LI>mxmlElementSetAttrf() did not work (STR #57)</LI>
<LI>mxmlLoad*() incorrectly treated declarations as parent elements (STR
 #56)</LI>
<LI>mxmlLoad*() incorrectly allowed attributes without values (STR #47)</LI>
<LI>Fixed Visual C++ build problems (STR #49)</LI>
<LI>mxmlLoad*() did not return NULL when an element contained an error
 (STR #46)</LI>
<LI>Added support for the apos character entity (STR #54)</LI>
<LI>Fixed whitespace detection with Unicode characters (STR #48)</LI>
<LI>mxmlWalkNext() and mxmlWalkPrev() did not work correctly when called
 with a node with no children as the top node (STR #53)</LI>
</UL>
<H2><A NAME="7_7">Changes in Mini-XML 2.3</A></H2>
<UL>
<LI>Added two exceptions to the LGPL to support static linking of
 applications against Mini-XML</LI>
<LI>The mxmldoc utility can now generate man pages, too.</LI>
<LI>Added a mxmlNewXML() function</LI>
<LI>Added a mxmlElementSetAttrf() function (STR #43)</LI>
<LI>Added a snprintf() emulation function for the test program (STR #32)</LI>
<LI>Added the _CRT_SECURE_NO_DEPRECATE definition when building on VC++
 2005 (STR #36)</LI>
<LI>mxmlLoad*() did not detect missing &gt; characters in elements (STR
 #41)</LI>
<LI>mxmlLoad*() did not detect missing close tags at the end of an XML
 document (STR #45)</LI>
<LI>Added user_data and ref_count members to mxml_node_t structure</LI>
<LI>Added mxmlReleaseNode() and mxmlRetainNode() APIs for
 reference-counted nodes</LI>
<LI>Added mxmlSetWrapMargin() to control the wrapping of XML output</LI>
<LI>Added conditional check for EINTR error code for certain Windows
 compilers that do not define it (STR #33)</LI>
<LI>The mxmldoc program now generates correct HTML 4.0 output -
 previously it generated invalid XHTML</LI>
<LI>The mxmldoc program now supports &quot;@deprecated@, &quot;@private@&quot;, and
 &quot;@since version@&quot; comments</LI>
<LI>Fixed function and enumeration type bugs in mxmldoc</LI>
<LI>Fixed the XML schema for mxmldoc</LI>
<LI>The mxmldoc program now supports --intro, --section, and --title
 options</LI>
<LI>The mxmlLoad*() functions could leak a node on an error (STR #27)</LI>
<LI>The mxml_vsnprintf() function could get in an infinite loop on a
 buffer overflow (STR #25)</LI>
<LI>Added new mxmlNewCDATA() and mxmlSetCDATA() functions to create and
 set CDATA nodes, which are really just special element nodes</LI>
<LI>Added new MXML_IGNORE type and MXML_IGNORE_CB callback to ignore
 non-element nodes, e.g. whitespace</LI>
<LI>mxmlLoad*() did not treat custom data as opaque, so whitespace
 characters would be lost</LI>
</UL>
<H2><A NAME="7_8">Changes in Mini-XML 2.2.2</A></H2>
<UL>
<LI>mxmlLoad*() did not treat custom data as opaque, so whitespace
 characters would be lost.</LI>
</UL>
<H2><A NAME="7_9">Changes in Mini-XML 2.2.1</A></H2>
<UL>
<LI>mxmlLoadFd(), mxmlLoadFile(), and mxmlLoadString() now correctly
 return NULL on error (STR #21)</LI>
<LI>mxmlNewInteger(), mxmlNewOpaque(), mxmlNewReal(), mxmlNewText(), and
 mxmlNewTextf() incorrectly required a parent node (STR #22)</LI>
<LI>Fixed an XML output bug in mxmldoc.</LI>
<LI>The &quot;make install&quot; target now uses the install command to set the
 proper permissions on UNIX/Linux/OSX.</LI>
<LI>Fixed a MingW/Cygwin compilation problem (STR #18)</LI>
</UL>
<H2><A NAME="7_10">Changes in Mini-XML 2.2</A></H2>
<UL>
<LI>Added shared library support (STR #17)</LI>
<LI>mxmlLoad*() now returns an error when an XML stream contains illegal
 control characters (STR #10)</LI>
<LI>mxmlLoad*() now returns an error when an element contains two
 attributes with the same name in conformance with the XML spec (STR
 #16)</LI>
<LI>Added support for CDATA (STR #14, STR #15)</LI>
<LI>Updated comment and processing instruction handling - no entity
 support per XML specification.</LI>
<LI>Added checking for invalid comment termination (&quot;---&gt;&quot; is not
 allowed)</LI>
</UL>
<H2><A NAME="7_11">Changes in Mini-XML 2.1</A></H2>
<UL>
<LI>Added support for custom data nodes (STR #6)</LI>
<LI>Now treat UTF-8 sequences which are longer than necessary as an
 error (STR #4)</LI>
<LI>Fixed entity number support (STR #8)</LI>
<LI>Fixed mxmlLoadString() bug with UTF-8 (STR #7)</LI>
<LI>Fixed entity lookup bug (STR #5)</LI>
<LI>Added mxmlLoadFd() and mxmlSaveFd() functions.</LI>
<LI>Fixed multi-word UTF-16 handling.</LI>
</UL>
<H2><A NAME="7_12">Changes in Mini-XML 2.0</A></H2>
<UL>
<LI>New programmers manual.</LI>
<LI>Added Visual C++ project files for Microsoft Windows users.</LI>
<LI>Added optimizations to mxmldoc, mxmlSaveFile(), and mxmlIndexNew()
 (STR #2)</LI>
<LI>mxmlEntityAddCallback() now returns an integer status (STR #2)</LI>
<LI>Added UTF-16 support (input only; all output is UTF-8)</LI>
<LI>Added index functions to build a searchable index of XML nodes.</LI>
<LI>Added character entity callback interface to support additional
 character entities beyond those defined in the XHTML specification.</LI>
<LI>Added support for XHTML character entities.</LI>
<LI>The mxmldoc utility now produces XML output which conforms to an
 updated XML schema, described in the file &quot;doc/mxmldoc.xsd&quot;.</LI>
<LI>Changed the whitespace callback interface to return strings instead
 of a single character, allowing for greater control over the formatting
 of XML files written using Mini-XML. THIS CHANGE WILL REQUIRE CHANGES
 TO YOUR 1.x CODE IF YOU USE WHITESPACE CALLBACKS.</LI>
<LI>The mxmldoc utility now produces XML output which conforms to an
 updated XML schema, described in the file &quot;doc/mxmldoc.xsd&quot;.</LI>
<LI>Changed the whitespace callback interface to return strings instead
 of a single character, allowing for greater control over the formatting
 of XML files written using Mini-XML. THIS CHANGE WILL REQUIRE CHANGES
 TO YOUR 1.x CODE IF YOU USE WHITESPACE CALLBACKS.</LI>
<LI>The mxmldoc utility is now capable of documenting C++ classes,
 functions, and structures, and correctly handles C++ comments.</LI>
<LI>Added new modular tests for mxmldoc.</LI>
<LI>Updated the mxmldoc output to be more compatible with embedding in
 manuals produced with HTMLDOC.</LI>
<LI>The makefile incorrectly included a &quot;/&quot; separator between the
 destination path and install path. This caused problems when building
 and installing with MingW.</LI>
</UL>
<H2><A NAME="7_13">Changes in Mini-XML 1.3</A></H2>
<UL>
<LI>Fixes for mxmldoc.</LI>
<LI>Added support for reading standard HTML entity names.</LI>
<LI>mxmlLoadString/File() did not decode character entities in element
 names, attribute names, or attribute values.</LI>
<LI>mxmlLoadString/File() would crash when loading non- conformant XML
 data under an existing parent (top) node.</LI>
<LI>Fixed several bugs in the mxmldoc utility.</LI>
<LI>Added new error callback function to catch a variety of errors and
 log them to someplace other than stderr.</LI>
<LI>The mxmlElementSetAttr() function now allows for NULL attribute
 values.</LI>
<LI>The load and save functions now properly handle quoted element and
 attribute name strings properly, e.g. for !DOCTYPE declarations.</LI>
</UL>
<H2><A NAME="7_14">Changes in Mini-XML 1.2</A></H2>
<UL>
<LI>Added new &quot;set&quot; methods to set the value of a node.</LI>
<LI>Added new formatted text methods mxmlNewTextf() and mxmlSetTextf()
 to create/set a text node value using printf-style formats.</LI>
<LI>Added new standard callbacks for use with the mxmlLoad functions.</LI>
<LI>Updated the HTML documentation to include examples of the walk and
 load function output.</LI>
<LI>Added --with/without-ansi configure option to control the strdup()
 function check.</LI>
<LI>Added --with/without-snprintf configure option to control the
 snprintf() and vsnprintf() function checks.</LI>
</UL>
<H2><A NAME="7_15">Changes in Mini-XML 1.1.2</A></H2>
<UL>
<LI>The mxml(3) man page wasn't updated for the string functions.</LI>
<LI>mxmlSaveString() returned the wrong number of characters.</LI>
<LI>mxml_add_char() updated the buffer pointer in the wrong place.</LI>
</UL>
<H2><A NAME="7_16">Changes in Mini-XML 1.1.1</A></H2>
<UL>
<LI>The private mxml_add_ch() function did not update the
 start-of-buffer pointer which could cause a crash when using
 mxmlSaveString().</LI>
<LI>The private mxml_write_ws() function called putc() instead of using
 the proper callback which could cause a crash when using
 mxmlSaveString().</LI>
<LI>Added a mxmlSaveAllocString() convenience function for saving an XML
 node tree to an allocated string.</LI>
</UL>
<H2><A NAME="7_17">Changes in Mini-XML 1.1</A></H2>
<UL>
<LI>The mxmlLoadFile() function now uses dynamically allocated string
 buffers for element names, attribute names, and attribute values.
 Previously they were capped at 16383, 255, and 255 bytes, respectively.</LI>
<LI>Added a new mxmlLoadString() function for loading an XML node tree
 from a string.</LI>
<LI>Added a new mxmlSaveString() function for saving an XML node tree to
 a string.</LI>
<LI>Add emulation of strdup() if the local platform does not provide the
 function.</LI>
</UL>
<H2><A NAME="7_18">Changes in Mini-XML 1.0</A></H2>
<UL>
<LI>The mxmldoc program now handles function arguments, structures,
 unions, enumerations, classes, and typedefs properly.</LI>
<LI>Documentation provided via mxmldoc and more in-line comments in the
 code.</LI>
<LI>Added man pages and packaging files.</LI>
</UL>
<H2><A NAME="7_19">Changes in Mini-XML 0.93</A></H2>
<UL>
<LI>New mxmldoc example program that is also used to create and update
 code documentation using XML and produce HTML reference pages.</LI>
<LI>Added mxmlAdd() and mxmlRemove() functions to add and remove nodes
 from a tree. This provides more flexibility over where the nodes are
 inserted and allows nodes to be moved within the tree as needed.</LI>
<LI>mxmlLoadFile() now correctly handles comments.</LI>
<LI>mxmlLoadFile() now supports the required &quot;gt&quot;, &quot;quot&quot;, and &quot;nbsp&quot;
 character entities.</LI>
<LI>mxmlSaveFile() now uses newlines as whitespace when valid to do so.</LI>
<LI>mxmlFindElement() now also takes attribute name and attribute value
 string arguments to limit the search to specific elements with
 attributes and/or values.</LI>
 NULL pointers can be used as &quot;wildcards&quot;.
<LI>Added uninstall target to makefile, and auto-reconfig if Makefile.in
 or configure.in are changed.</LI>
<LI>mxmlFindElement(), mxmlWalkNext(), and mxmlWalkPrev() now all
 provide &quot;descend&quot; arguments to control whether they descend into child
 nodes in the tree.</LI>
<LI>Fixed some whitespace issues in mxmlLoadFile().</LI>
<LI>Fixed Unicode output and whitespace issues in mxmlSaveFile().</LI>
<LI>mxmlSaveFile() now supports a whitespace callback to provide more
 human-readable XML output under program control.</LI>
</UL>
<H2><A NAME="7_20">Changes in Mini-XML 0.92</A></H2>
<UL>
<LI>mxmlSaveFile() didn't return a value on success.</LI>
</UL>
<H2><A NAME="7_21">Changes in Mini-XML 0.91</A></H2>
<UL>
<LI>mxmlWalkNext() would go into an infinite loop.</LI>
</UL>
<H2><A NAME="7_22">Changes in Mini-XML 0.9</A></H2>
<UL>
<LI>Initial public release.</LI>
</UL>
<HR NOSHADE>
<DIV class="body">
<H1 align="right"><A name="REFERENCE"><IMG align="right" alt="C" height="100"
hspace="10" src="C.gif" width="100"></A>Library Reference</H1>
<H2 class="title"><A NAME="8_1">Contents</A></H2>
<UL class="contents">
<LI><A href="#FUNCTIONS">Functions</A>
<UL class="code">
<LI><A href="#mxmlAdd" title="Add a node to a tree.">mxmlAdd</A></LI>
<LI><A href="#mxmlDelete" title="Delete a node and all of its children.">
mxmlDelete</A></LI>
<LI><A href="#mxmlElementDeleteAttr" title="Delete an attribute.">
mxmlElementDeleteAttr</A></LI>
<LI><A href="#mxmlElementGetAttr" title="Get an attribute.">
mxmlElementGetAttr</A></LI>
<LI><A href="#mxmlElementSetAttr" title="Set an attribute.">
mxmlElementSetAttr</A></LI>
<LI><A href="#mxmlElementSetAttrf" title="Set an attribute with a formatted value.">
mxmlElementSetAttrf</A></LI>
<LI><A href="#mxmlEntityAddCallback" title="Add a callback to convert entities to Unicode.">
mxmlEntityAddCallback</A></LI>
<LI><A href="#mxmlEntityGetName" title="Get the name that corresponds to the character value.">
mxmlEntityGetName</A></LI>
<LI><A href="#mxmlEntityGetValue" title="Get the character corresponding to a named entity.">
mxmlEntityGetValue</A></LI>
<LI><A href="#mxmlEntityRemoveCallback" title="Remove a callback.">
mxmlEntityRemoveCallback</A></LI>
<LI><A href="#mxmlFindElement" title="Find the named element.">
mxmlFindElement</A></LI>
<LI><A href="#mxmlFindPath" title="Find a node with the given path.">
mxmlFindPath</A></LI>
<LI><A href="#mxmlGetCDATA" title="Get the value for a CDATA node.">
mxmlGetCDATA</A></LI>
<LI><A href="#mxmlGetCustom" title="Get the value for a custom node.">
mxmlGetCustom</A></LI>
<LI><A href="#mxmlGetElement" title="Get the name for an element node.">
mxmlGetElement</A></LI>
<LI><A href="#mxmlGetFirstChild" title="Get the first child of an element node.">
mxmlGetFirstChild</A></LI>
<LI><A href="#mxmlGetInteger" title="Get the integer value from the specified node or its first child.">
mxmlGetInteger</A></LI>
<LI><A href="#mxmlGetLastChild" title="Get the last child of an element node.">
mxmlGetLastChild</A></LI>
<LI><A href="#mxmlGetNextSibling" title="Return the node type...">
mxmlGetNextSibling</A></LI>
<LI><A href="#mxmlGetOpaque" title="Get an opaque string value for a node or its first child.">
mxmlGetOpaque</A></LI>
<LI><A href="#mxmlGetParent" title="Get the parent node.">mxmlGetParent</A>
</LI>
<LI><A href="#mxmlGetPrevSibling" title="Get the previous node for the current parent.">
mxmlGetPrevSibling</A></LI>
<LI><A href="#mxmlGetReal" title="Get the real value for a node or its first child.">
mxmlGetReal</A></LI>
<LI><A href="#mxmlGetRefCount" title="Get the current reference (use) count for a node.">
mxmlGetRefCount</A></LI>
<LI><A href="#mxmlGetText" title="Get the text value for a node or its first child.">
mxmlGetText</A></LI>
<LI><A href="#mxmlGetType" title="Get the node type.">mxmlGetType</A></LI>
<LI><A href="#mxmlGetUserData" title="Get the user data pointer for a node.">
mxmlGetUserData</A></LI>
<LI><A href="#mxmlIndexDelete" title="Delete an index.">mxmlIndexDelete</A>
</LI>
<LI><A href="#mxmlIndexEnum" title="Return the next node in the index.">
mxmlIndexEnum</A></LI>
<LI><A href="#mxmlIndexFind" title="Find the next matching node.">
mxmlIndexFind</A></LI>
<LI><A href="#mxmlIndexGetCount" title="Get the number of nodes in an index.">
mxmlIndexGetCount</A></LI>
<LI><A href="#mxmlIndexNew" title="Create a new index.">mxmlIndexNew</A></LI>
<LI><A href="#mxmlIndexReset" title="Reset the enumeration/find pointer in the index and return the first node in the index.">
mxmlIndexReset</A></LI>
<LI><A href="#mxmlLoadFd" title="Load a file descriptor into an XML node tree.">
mxmlLoadFd</A></LI>
<LI><A href="#mxmlLoadFile" title="Load a file into an XML node tree.">
mxmlLoadFile</A></LI>
<LI><A href="#mxmlLoadString" title="Load a string into an XML node tree.">
mxmlLoadString</A></LI>
<LI><A href="#mxmlNewCDATA" title="Create a new CDATA node.">
mxmlNewCDATA</A></LI>
<LI><A href="#mxmlNewCustom" title="Create a new custom data node.">
mxmlNewCustom</A></LI>
<LI><A href="#mxmlNewElement" title="Create a new element node.">
mxmlNewElement</A></LI>
<LI><A href="#mxmlNewInteger" title="Create a new integer node.">
mxmlNewInteger</A></LI>
<LI><A href="#mxmlNewOpaque" title="Create a new opaque string.">
mxmlNewOpaque</A></LI>
<LI><A href="#mxmlNewReal" title="Create a new real number node.">
mxmlNewReal</A></LI>
<LI><A href="#mxmlNewText" title="Create a new text fragment node.">
mxmlNewText</A></LI>
<LI><A href="#mxmlNewTextf" title="Create a new formatted text fragment node.">
mxmlNewTextf</A></LI>
<LI><A href="#mxmlNewXML" title="Create a new XML document tree.">
mxmlNewXML</A></LI>
<LI><A href="#mxmlRelease" title="Release a node.">mxmlRelease</A></LI>
<LI><A href="#mxmlRemove" title="Remove a node from its parent.">
mxmlRemove</A></LI>
<LI><A href="#mxmlRetain" title="Retain a node.">mxmlRetain</A></LI>
<LI><A href="#mxmlSAXLoadFd" title="Load a file descriptor into an XML node tree using a SAX callback.">
mxmlSAXLoadFd</A></LI>
<LI><A href="#mxmlSAXLoadFile" title="Load a file into an XML node tree using a SAX callback.">
mxmlSAXLoadFile</A></LI>
<LI><A href="#mxmlSAXLoadString" title="Load a string into an XML node tree using a SAX callback.">
mxmlSAXLoadString</A></LI>
<LI><A href="#mxmlSaveAllocString" title="Save an XML tree to an allocated string.">
mxmlSaveAllocString</A></LI>
<LI><A href="#mxmlSaveFd" title="Save an XML tree to a file descriptor.">
mxmlSaveFd</A></LI>
<LI><A href="#mxmlSaveFile" title="Save an XML tree to a file.">
mxmlSaveFile</A></LI>
<LI><A href="#mxmlSaveString" title="Save an XML node tree to a string.">
mxmlSaveString</A></LI>
<LI><A href="#mxmlSetCDATA" title="Set the element name of a CDATA node.">
mxmlSetCDATA</A></LI>
<LI><A href="#mxmlSetCustom" title="Set the data and destructor of a custom data node.">
mxmlSetCustom</A></LI>
<LI><A href="#mxmlSetCustomHandlers" title="Set the handling functions for custom data.">
mxmlSetCustomHandlers</A></LI>
<LI><A href="#mxmlSetElement" title="Set the name of an element node.">
mxmlSetElement</A></LI>
<LI><A href="#mxmlSetErrorCallback" title="Set the error message callback.">
mxmlSetErrorCallback</A></LI>
<LI><A href="#mxmlSetInteger" title="Set the value of an integer node.">
mxmlSetInteger</A></LI>
<LI><A href="#mxmlSetOpaque" title="Set the value of an opaque node.">
mxmlSetOpaque</A></LI>
<LI><A href="#mxmlSetReal" title="Set the value of a real number node.">
mxmlSetReal</A></LI>
<LI><A href="#mxmlSetText" title="Set the value of a text node.">
mxmlSetText</A></LI>
<LI><A href="#mxmlSetTextf" title="Set the value of a text node to a formatted string.">
mxmlSetTextf</A></LI>
<LI><A href="#mxmlSetUserData" title="Set the user data pointer for a node.">
mxmlSetUserData</A></LI>
<LI><A href="#mxmlSetWrapMargin" title="Set the wrap margin when saving XML data.">
mxmlSetWrapMargin</A></LI>
<LI><A href="#mxmlWalkNext" title="Walk to the next logical node in the tree.">
mxmlWalkNext</A></LI>
<LI><A href="#mxmlWalkPrev" title="Walk to the previous logical node in the tree.">
mxmlWalkPrev</A></LI>
</UL>
</LI>
<LI><A href="#TYPES">Data Types</A>
<UL class="code">
<LI><A href="#mxml_custom_destroy_cb_t" title="Custom data destructor">
mxml_custom_destroy_cb_t</A></LI>
<LI><A href="#mxml_custom_load_cb_t" title="Custom data load callback function">
mxml_custom_load_cb_t</A></LI>
<LI><A href="#mxml_custom_save_cb_t" title="Custom data save callback function">
mxml_custom_save_cb_t</A></LI>
<LI><A href="#mxml_entity_cb_t" title="Entity callback function">
mxml_entity_cb_t</A></LI>
<LI><A href="#mxml_error_cb_t" title="Error callback function">
mxml_error_cb_t</A></LI>
<LI><A href="#mxml_index_t" title="An XML node index.">mxml_index_t</A></LI>
<LI><A href="#mxml_load_cb_t" title="Load callback function">
mxml_load_cb_t</A></LI>
<LI><A href="#mxml_node_t" title="An XML node.">mxml_node_t</A></LI>
<LI><A href="#mxml_save_cb_t" title="Save callback function">
mxml_save_cb_t</A></LI>
<LI><A href="#mxml_sax_cb_t" title="SAX callback function">mxml_sax_cb_t</A>
</LI>
<LI><A href="#mxml_sax_event_t" title="SAX event type.">mxml_sax_event_t</A>
</LI>
<LI><A href="#mxml_type_t" title="The XML node type.">mxml_type_t</A></LI>
</UL>
</LI>
<LI><A href="#ENUMERATIONS">Constants</A>
<UL class="code">
<LI><A href="#mxml_sax_event_e" title="SAX event type.">mxml_sax_event_e</A>
</LI>
<LI><A href="#mxml_type_e" title="The XML node type.">mxml_type_e</A></LI>
</UL>
</LI>
</UL>
<H2 class="title"><A name="FUNCTIONS">Functions</A></H2>
<H3 class="function"><A name="mxmlAdd">mxmlAdd</A></H3>
<P class="description">Add a node to a tree.</P>
<P class="code"> void mxmlAdd (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int where,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *child,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node</DD>
<DT>where</DT>
<DD class="description">Where to add, MXML_ADD_BEFORE or MXML_ADD_AFTER</DD>
<DT>child</DT>
<DD class="description">Child node for where or MXML_ADD_TO_PARENT</DD>
<DT>node</DT>
<DD class="description">Node to add</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">Adds the specified node to the parent. If the
 child argument is not NULL, puts the new node before or after the
 specified child depending on the value of the where argument. If the
 child argument is NULL, puts the new node at the beginning of the child
 list (MXML_ADD_BEFORE) or at the end of the child list
 (MXML_ADD_AFTER). The constant MXML_ADD_TO_PARENT can be used to
 specify a NULL child pointer.</P>
<H3 class="function"><A name="mxmlDelete">mxmlDelete</A></H3>
<P class="description">Delete a node and all of its children.</P>
<P class="code"> void mxmlDelete (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to delete</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">If the specified node has a parent, this function
 first removes the node from its parent using the mxmlRemove() function.</P>
<H3 class="function"><A NAME="8_2_3">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.4&nbsp;<A name="mxmlElementDeleteAttr">mxmlElementDeleteAttr</A></A>
</H3>
<P class="description">Delete an attribute.</P>
<P class="code"> void mxmlElementDeleteAttr (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Element</DD>
<DT>name</DT>
<DD class="description">Attribute name</DD>
</DL>
<H3 class="function"><A name="mxmlElementGetAttr">mxmlElementGetAttr</A></H3>
<P class="description">Get an attribute.</P>
<P class="code"> const char *mxmlElementGetAttr (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Element node</DD>
<DT>name</DT>
<DD class="description">Name of attribute</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Attribute value or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">This function returns NULL if the node is not an
 element or the named attribute does not exist.</P>
<H3 class="function"><A name="mxmlElementSetAttr">mxmlElementSetAttr</A></H3>
<P class="description">Set an attribute.</P>
<P class="code"> void mxmlElementSetAttr (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *value
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Element node</DD>
<DT>name</DT>
<DD class="description">Name of attribute</DD>
<DT>value</DT>
<DD class="description">Attribute value</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">If the named attribute already exists, the value
 of the attribute is replaced by the new string value. The string value
 is copied into the element node. This function does nothing if the node
 is not an element.</P>
<H3 class="function"><A NAME="8_2_6">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlElementSetAttrf">mxmlElementSetAttrf</A></A></H3>
<P class="description">Set an attribute with a formatted value.</P>
<P class="code"> void mxmlElementSetAttrf (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *format,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;...
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Element node</DD>
<DT>name</DT>
<DD class="description">Name of attribute</DD>
<DT>format</DT>
<DD class="description">Printf-style attribute value</DD>
<DT>...</DT>
<DD class="description">Additional arguments as needed</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">If the named attribute already exists, the value
 of the attribute is replaced by the new formatted string. The formatted
 string value is copied into the element node. This function does
 nothing if the node is not an element.</P>
<H3 class="function"><A name="mxmlEntityAddCallback">
mxmlEntityAddCallback</A></H3>
<P class="description">Add a callback to convert entities to Unicode.</P>
<P class="code"> int mxmlEntityAddCallback (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_entity_cb_t">mxml_entity_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>cb</DT>
<DD class="description">Callback function to add</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H3 class="function"><A name="mxmlEntityGetName">mxmlEntityGetName</A></H3>
<P class="description">Get the name that corresponds to the character
 value.</P>
<P class="code"> const char *mxmlEntityGetName (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int val
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>val</DT>
<DD class="description">Character value</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Entity name or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">If val does not need to be represented by a named
 entity, NULL is returned.</P>
<H3 class="function"><A name="mxmlEntityGetValue">mxmlEntityGetValue</A></H3>
<P class="description">Get the character corresponding to a named
 entity.</P>
<P class="code"> int mxmlEntityGetValue (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>name</DT>
<DD class="description">Entity name</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Character value or -1 on error</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The entity name can also be a numeric constant. -1
 is returned if the name is not known.</P>
<H3 class="function"><A name="mxmlEntityRemoveCallback">
mxmlEntityRemoveCallback</A></H3>
<P class="description">Remove a callback.</P>
<P class="code"> void mxmlEntityRemoveCallback (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_entity_cb_t">mxml_entity_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>cb</DT>
<DD class="description">Callback function to remove</DD>
</DL>
<H3 class="function"><A name="mxmlFindElement">mxmlFindElement</A></H3>
<P class="description">Find the named element.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlFindElement
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *attr,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *value,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int descend
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Current node</DD>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>name</DT>
<DD class="description">Element name or NULL for any</DD>
<DT>attr</DT>
<DD class="description">Attribute name, or NULL for none</DD>
<DT>value</DT>
<DD class="description">Attribute value, or NULL for any</DD>
<DT>descend</DT>
<DD class="description">Descend into tree - MXML_DESCEND,
 MXML_NO_DESCEND, or MXML_DESCEND_FIRST</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Element node or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The search is constrained by the name, attribute
 name, and value; any NULL names or values are treated as wildcards, so
 different kinds of searches can be implemented by looking for all
 elements of a given name or all elements with a specific attribute. The
 descend argument determines whether the search descends into child
 nodes; normally you will use MXML_DESCEND_FIRST for the initial search
 and MXML_NO_DESCEND to find additional direct descendents of the node.
 The top node argument constrains the search to a particular node's
 children.</P>
<H3 class="function"><A NAME="8_2_12">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlFindPath">mxmlFindPath</A></A></H3>
<P class="description">Find a node with the given path.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlFindPath (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *path
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>path</DT>
<DD class="description">Path to element</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Found node or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The &quot;path&quot; is a slash-separated list of element
 names. The name &quot;*&quot; is considered a wildcard for one or more levels of
 elements. For example, &quot;foo/one/two&quot;, &quot;bar/two/one&quot;, &quot;*/one&quot;, and so
 forth.
<BR>
<BR> The first child node of the found node is returned if the given
 node has children and the first child is a value node.</P>
<H3 class="function"><A NAME="8_2_13">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetCDATA">mxmlGetCDATA</A></A></H3>
<P class="description">Get the value for a CDATA node.</P>
<P class="code"> const char *mxmlGetCDATA (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">CDATA value or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node is not a
 CDATA element.</P>
<H3 class="function"><A NAME="8_2_14">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetCustom">mxmlGetCustom</A></A></H3>
<P class="description">Get the value for a custom node.</P>
<P class="code"> const void *mxmlGetCustom (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Custom value or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node (or its
 first child) is not a custom value node.</P>
<H3 class="function"><A NAME="8_2_15">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetElement">mxmlGetElement</A></A></H3>
<P class="description">Get the name for an element node.</P>
<P class="code"> const char *mxmlGetElement (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Element name or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node is not
 an element node.</P>
<H3 class="function"><A NAME="8_2_16">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetFirstChild">mxmlGetFirstChild</A></A></H3>
<P class="description">Get the first child of an element node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A>
 *mxmlGetFirstChild (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First child or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node is not
 an element node or if the node has no children.</P>
<H3 class="function"><A NAME="8_2_17">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetInteger">mxmlGetInteger</A></A></H3>
<P class="description">Get the integer value from the specified node or
 its first child.</P>
<P class="code"> int mxmlGetInteger (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Integer value or 0</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">0 is returned if the node (or its first child) is
 not an integer value node.</P>
<H3 class="function"><A NAME="8_2_18">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetLastChild">mxmlGetLastChild</A></A></H3>
<P class="description">Get the last child of an element node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A>
 *mxmlGetLastChild (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Last child or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node is not
 an element node or if the node has no children.</P>
<H3 class="function"><A name="mxmlGetNextSibling">mxmlGetNextSibling</A></H3>
<P class="description">Return the node type...</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A>
 *mxmlGetNextSibling (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Get the next node for the current parent.</P>
<P class="discussion"><CODE>NULL</CODE> is returned if this is the last
 child for the current parent.</P>
<H3 class="function"><A NAME="8_2_20">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetOpaque">mxmlGetOpaque</A></A></H3>
<P class="description">Get an opaque string value for a node or its
 first child.</P>
<P class="code"> const char *mxmlGetOpaque (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Opaque string or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node (or its
 first child) is not an opaque value node.</P>
<H3 class="function"><A NAME="8_2_21">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetParent">mxmlGetParent</A></A></H3>
<P class="description">Get the parent node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlGetParent (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Parent node or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned for a root node.</P>
<H3 class="function"><A NAME="8_2_22">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetPrevSibling">mxmlGetPrevSibling</A></A></H3>
<P class="description">Get the previous node for the current parent.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A>
 *mxmlGetPrevSibling (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Previous node or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if this is the first
 child for the current parent.</P>
<H3 class="function"><A NAME="8_2_23">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetReal">mxmlGetReal</A></A></H3>
<P class="description">Get the real value for a node or its first child.</P>
<P class="code"> double mxmlGetReal (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Real value or 0.0</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">0.0 is returned if the node (or its first child)
 is not a real value node.</P>
<H3 class="function"><A NAME="8_2_24">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetRefCount">mxmlGetRefCount</A></A></H3>
<P class="description">Get the current reference (use) count for a node.</P>
<P class="code"> int mxmlGetRefCount (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Reference count</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The initial reference count of new nodes is 1. Use
 the <A href="#mxmlRetain"><CODE>mxmlRetain</CODE></A> and <A href="#mxmlRelease">
<CODE>mxmlRelease</CODE></A> functions to increment and decrement a
 node's reference count. .</P>
<H3 class="function"><A NAME="8_2_25">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetText">mxmlGetText</A></A></H3>
<P class="description">Get the text value for a node or its first child.</P>
<P class="code"> const char *mxmlGetText (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int *whitespace
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
<DT>whitespace</DT>
<DD class="description">1 if string is preceded by whitespace, 0
 otherwise</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Text string or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>NULL</CODE> is returned if the node (or its
 first child) is not a text node. The &quot;whitespace&quot; argument can be NULL.</P>
<H3 class="function"><A NAME="8_2_26">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetType">mxmlGetType</A></A></H3>
<P class="description">Get the node type.</P>
<P class="code"> <A href="#mxml_type_t">mxml_type_t</A> mxmlGetType (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Type of node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion"><CODE>MXML_IGNORE</CODE> is returned if &quot;node&quot; is <CODE>
NULL</CODE>.</P>
<H3 class="function"><A NAME="8_2_27">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlGetUserData">mxmlGetUserData</A></A></H3>
<P class="description">Get the user data pointer for a node.</P>
<P class="code"> void *mxmlGetUserData (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to get</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">User data pointer</P>
<H3 class="function"><A name="mxmlIndexDelete">mxmlIndexDelete</A></H3>
<P class="description">Delete an index.</P>
<P class="code"> void mxmlIndexDelete (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_index_t">mxml_index_t</A> *ind
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>ind</DT>
<DD class="description">Index to delete</DD>
</DL>
<H3 class="function"><A name="mxmlIndexEnum">mxmlIndexEnum</A></H3>
<P class="description">Return the next node in the index.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlIndexEnum (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_index_t">mxml_index_t</A> *ind
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>ind</DT>
<DD class="description">Index to enumerate</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Next node or NULL if there is none</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">Nodes are returned in the sorted order of the
 index.</P>
<H3 class="function"><A name="mxmlIndexFind">mxmlIndexFind</A></H3>
<P class="description">Find the next matching node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlIndexFind (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_index_t">mxml_index_t</A> *ind,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *element,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *value
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>ind</DT>
<DD class="description">Index to search</DD>
<DT>element</DT>
<DD class="description">Element name to find, if any</DD>
<DT>value</DT>
<DD class="description">Attribute value, if any</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Node or NULL if none found</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">You should call mxmlIndexReset() prior to using
 this function for the first time with a particular set of &quot;element&quot; and
 &quot;value&quot; strings. Passing NULL for both &quot;element&quot; and &quot;value&quot; is
 equivalent to calling mxmlIndexEnum().</P>
<H3 class="function"><A NAME="8_2_31">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlIndexGetCount">mxmlIndexGetCount</A></A></H3>
<P class="description">Get the number of nodes in an index.</P>
<P class="code"> int mxmlIndexGetCount (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_index_t">mxml_index_t</A> *ind
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>ind</DT>
<DD class="description">Index of nodes</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Number of nodes in index</P>
<H3 class="function"><A name="mxmlIndexNew">mxmlIndexNew</A></H3>
<P class="description">Create a new index.</P>
<P class="code"> <A href="#mxml_index_t">mxml_index_t</A> *mxmlIndexNew
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *element,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *attr
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">XML node tree</DD>
<DT>element</DT>
<DD class="description">Element to index or NULL for all</DD>
<DT>attr</DT>
<DD class="description">Attribute to index or NULL for none</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New index</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The index will contain all nodes that contain the
 named element and/or attribute. If both &quot;element&quot; and &quot;attr&quot; are NULL,
 then the index will contain a sorted list of the elements in the node
 tree. Nodes are sorted by element name and optionally by attribute
 value if the &quot;attr&quot; argument is not NULL.</P>
<H3 class="function"><A name="mxmlIndexReset">mxmlIndexReset</A></H3>
<P class="description">Reset the enumeration/find pointer in the index
 and return the first node in the index.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlIndexReset
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_index_t">mxml_index_t</A> *ind
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>ind</DT>
<DD class="description">Index to reset</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if there is none</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">This function should be called prior to using
 mxmlIndexEnum() or mxmlIndexFind() for the first time.</P>
<H3 class="function"><A name="mxmlLoadFd">mxmlLoadFd</A></H3>
<P class="description">Load a file descriptor into an XML node tree.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlLoadFd (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int fd,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_load_cb_t">mxml_load_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>fd</DT>
<DD class="description">File descriptor to read from</DD>
<DT>cb</DT>
<DD class="description">Callback function or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if the file could not be read.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The nodes in the specified file are added to the
 specified top node. If no top node is provided, the XML file MUST be
 well-formed with a single parent node like &lt;?xml&gt; for the entire file.
 The callback function returns the value type that should be used for
 child nodes. If MXML_NO_CALLBACK is specified then all child nodes will
 be either MXML_ELEMENT or MXML_TEXT nodes.
<BR>
<BR> The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK,
 MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading
 child nodes of the specified type.</P>
<H3 class="function"><A name="mxmlLoadFile">mxmlLoadFile</A></H3>
<P class="description">Load a file into an XML node tree.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlLoadFile (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;FILE *fp,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_load_cb_t">mxml_load_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>fp</DT>
<DD class="description">File to read from</DD>
<DT>cb</DT>
<DD class="description">Callback function or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if the file could not be read.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The nodes in the specified file are added to the
 specified top node. If no top node is provided, the XML file MUST be
 well-formed with a single parent node like &lt;?xml&gt; for the entire file.
 The callback function returns the value type that should be used for
 child nodes. If MXML_NO_CALLBACK is specified then all child nodes will
 be either MXML_ELEMENT or MXML_TEXT nodes.
<BR>
<BR> The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK,
 MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading
 child nodes of the specified type.</P>
<H3 class="function"><A name="mxmlLoadString">mxmlLoadString</A></H3>
<P class="description">Load a string into an XML node tree.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlLoadString
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *s,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_load_cb_t">mxml_load_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>s</DT>
<DD class="description">String to load</DD>
<DT>cb</DT>
<DD class="description">Callback function or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if the string has errors.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The nodes in the specified string are added to the
 specified top node. If no top node is provided, the XML string MUST be
 well-formed with a single parent node like &lt;?xml&gt; for the entire
 string. The callback function returns the value type that should be
 used for child nodes. If MXML_NO_CALLBACK is specified then all child
 nodes will be either MXML_ELEMENT or MXML_TEXT nodes.
<BR>
<BR> The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK,
 MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading
 child nodes of the specified type.</P>
<H3 class="function"><A NAME="8_2_37">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlNewCDATA">mxmlNewCDATA</A></A></H3>
<P class="description">Create a new CDATA node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewCDATA (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *data
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>data</DT>
<DD class="description">Data string</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new CDATA node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new CDATA node has no parent. The data string must
 be nul-terminated and is copied into the new node. CDATA nodes use the
 MXML_ELEMENT type.</P>
<H3 class="function"><A NAME="8_2_38">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.1&nbsp;<A name="mxmlNewCustom">mxmlNewCustom</A></A></H3>
<P class="description">Create a new custom data node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewCustom (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;void *data,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_custom_destroy_cb_t">mxml_custom_destroy_cb_t</A>
 destroy
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>data</DT>
<DD class="description">Pointer to data</DD>
<DT>destroy</DT>
<DD class="description">Function to destroy data</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new custom node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new element node has no parent. NULL can be passed
 when the data in the node is not dynamically allocated or is separately
 managed.</P>
<H3 class="function"><A name="mxmlNewElement">mxmlNewElement</A></H3>
<P class="description">Create a new element node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewElement
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>name</DT>
<DD class="description">Name of element</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new element node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new element node has no parent.</P>
<H3 class="function"><A name="mxmlNewInteger">mxmlNewInteger</A></H3>
<P class="description">Create a new integer node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewInteger
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int integer
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>integer</DT>
<DD class="description">Integer value</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new integer node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new integer node has no parent.</P>
<H3 class="function"><A name="mxmlNewOpaque">mxmlNewOpaque</A></H3>
<P class="description">Create a new opaque string.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewOpaque (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *opaque
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>opaque</DT>
<DD class="description">Opaque string</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new opaque node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new opaque node has no parent. The opaque string
 must be nul-terminated and is copied into the new node.</P>
<H3 class="function"><A name="mxmlNewReal">mxmlNewReal</A></H3>
<P class="description">Create a new real number node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewReal (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;double real
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>real</DT>
<DD class="description">Real number value</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new real number node is added to the end of
 the specified parent's child list. The constant MXML_NO_PARENT can be
 used to specify that the new real number node has no parent.</P>
<H3 class="function"><A name="mxmlNewText">mxmlNewText</A></H3>
<P class="description">Create a new text fragment node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewText (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int whitespace,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *string
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>whitespace</DT>
<DD class="description">1 = leading whitespace, 0 = no whitespace</DD>
<DT>string</DT>
<DD class="description">String</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new text node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new text node has no parent. The whitespace
 parameter is used to specify whether leading whitespace is present
 before the node. The text string must be nul-terminated and is copied
 into the new node.</P>
<H3 class="function"><A name="mxmlNewTextf">mxmlNewTextf</A></H3>
<P class="description">Create a new formatted text fragment node.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewTextf (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *parent,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int whitespace,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *format,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;...
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>parent</DT>
<DD class="description">Parent node or MXML_NO_PARENT</DD>
<DT>whitespace</DT>
<DD class="description">1 = leading whitespace, 0 = no whitespace</DD>
<DT>format</DT>
<DD class="description">Printf-style frmat string</DD>
<DT>...</DT>
<DD class="description">Additional args as needed</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The new text node is added to the end of the
 specified parent's child list. The constant MXML_NO_PARENT can be used
 to specify that the new text node has no parent. The whitespace
 parameter is used to specify whether leading whitespace is present
 before the node. The format string must be nul-terminated and is
 formatted into the new node.</P>
<H3 class="function"><A NAME="8_2_45">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlNewXML">mxmlNewXML</A></A></H3>
<P class="description">Create a new XML document tree.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlNewXML (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *version
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>version</DT>
<DD class="description">Version number to use</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New ?xml node</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The &quot;version&quot; argument specifies the version
 number to put in the ?xml element node. If NULL, version 1.0 is
 assumed.</P>
<H3 class="function"><A NAME="8_2_46">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlRelease">mxmlRelease</A></A></H3>
<P class="description">Release a node.</P>
<P class="code"> int mxmlRelease (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New reference count</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">When the reference count reaches zero, the node
 (and any children) is deleted via mxmlDelete().</P>
<H3 class="function"><A name="mxmlRemove">mxmlRemove</A></H3>
<P class="description">Remove a node from its parent.</P>
<P class="code"> void mxmlRemove (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to remove</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">Does not free memory used by the node - use
 mxmlDelete() for that. This function does nothing if the node has no
 parent.</P>
<H3 class="function"><A NAME="8_2_48">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlRetain">mxmlRetain</A></A></H3>
<P class="description">Retain a node.</P>
<P class="code"> int mxmlRetain (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">New reference count</P>
<H3 class="function"><A NAME="8_2_49">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlSAXLoadFd">mxmlSAXLoadFd</A></A></H3>
<P class="description">Load a file descriptor into an XML node tree
 using a SAX callback.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlSAXLoadFd (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int fd,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_load_cb_t">mxml_load_cb_t</A> cb,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_sax_cb_t">mxml_sax_cb_t</A> sax_cb,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;void *sax_data
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>fd</DT>
<DD class="description">File descriptor to read from</DD>
<DT>cb</DT>
<DD class="description">Callback function or MXML_NO_CALLBACK</DD>
<DT>sax_cb</DT>
<DD class="description">SAX callback or MXML_NO_CALLBACK</DD>
<DT>sax_data</DT>
<DD class="description">SAX user data</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if the file could not be read.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The nodes in the specified file are added to the
 specified top node. If no top node is provided, the XML file MUST be
 well-formed with a single parent node like &lt;?xml&gt; for the entire file.
 The callback function returns the value type that should be used for
 child nodes. If MXML_NO_CALLBACK is specified then all child nodes will
 be either MXML_ELEMENT or MXML_TEXT nodes.
<BR>
<BR> The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK,
 MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading
 child nodes of the specified type.
<BR>
<BR> The SAX callback must call mxmlRetain() for any nodes that need to
 be kept for later use. Otherwise, nodes are deleted when the parent
 node is closed or after each data, comment, CDATA, or directive node.</P>
<H3 class="function"><A NAME="8_2_50">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlSAXLoadFile">mxmlSAXLoadFile</A></A></H3>
<P class="description">Load a file into an XML node tree using a SAX
 callback.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlSAXLoadFile
 (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;FILE *fp,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_load_cb_t">mxml_load_cb_t</A> cb,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_sax_cb_t">mxml_sax_cb_t</A> sax_cb,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;void *sax_data
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>fp</DT>
<DD class="description">File to read from</DD>
<DT>cb</DT>
<DD class="description">Callback function or MXML_NO_CALLBACK</DD>
<DT>sax_cb</DT>
<DD class="description">SAX callback or MXML_NO_CALLBACK</DD>
<DT>sax_data</DT>
<DD class="description">SAX user data</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if the file could not be read.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The nodes in the specified file are added to the
 specified top node. If no top node is provided, the XML file MUST be
 well-formed with a single parent node like &lt;?xml&gt; for the entire file.
 The callback function returns the value type that should be used for
 child nodes. If MXML_NO_CALLBACK is specified then all child nodes will
 be either MXML_ELEMENT or MXML_TEXT nodes.
<BR>
<BR> The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK,
 MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading
 child nodes of the specified type.
<BR>
<BR> The SAX callback must call mxmlRetain() for any nodes that need to
 be kept for later use. Otherwise, nodes are deleted when the parent
 node is closed or after each data, comment, CDATA, or directive node.</P>
<H3 class="function"><A NAME="8_2_51">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlSAXLoadString">mxmlSAXLoadString</A></A></H3>
<P class="description">Load a string into an XML node tree using a SAX
 callback.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A>
 *mxmlSAXLoadString (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *s,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_load_cb_t">mxml_load_cb_t</A> cb,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_sax_cb_t">mxml_sax_cb_t</A> sax_cb,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;void *sax_data
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>s</DT>
<DD class="description">String to load</DD>
<DT>cb</DT>
<DD class="description">Callback function or MXML_NO_CALLBACK</DD>
<DT>sax_cb</DT>
<DD class="description">SAX callback or MXML_NO_CALLBACK</DD>
<DT>sax_data</DT>
<DD class="description">SAX user data</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">First node or NULL if the string has errors.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The nodes in the specified string are added to the
 specified top node. If no top node is provided, the XML string MUST be
 well-formed with a single parent node like &lt;?xml&gt; for the entire
 string. The callback function returns the value type that should be
 used for child nodes. If MXML_NO_CALLBACK is specified then all child
 nodes will be either MXML_ELEMENT or MXML_TEXT nodes.
<BR>
<BR> The constants MXML_INTEGER_CALLBACK, MXML_OPAQUE_CALLBACK,
 MXML_REAL_CALLBACK, and MXML_TEXT_CALLBACK are defined for loading
 child nodes of the specified type.
<BR>
<BR> The SAX callback must call mxmlRetain() for any nodes that need to
 be kept for later use. Otherwise, nodes are deleted when the parent
 node is closed or after each data, comment, CDATA, or directive node.</P>
<H3 class="function"><A name="mxmlSaveAllocString">mxmlSaveAllocString</A>
</H3>
<P class="description">Save an XML tree to an allocated string.</P>
<P class="code"> char *mxmlSaveAllocString (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_save_cb_t">mxml_save_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to write</DD>
<DT>cb</DT>
<DD class="description">Whitespace callback or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Allocated string or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">This function returns a pointer to a string
 containing the textual representation of the XML node tree. The string
 should be freed using the free() function when you are done with it.
 NULL is returned if the node would produce an empty string or if the
 string cannot be allocated.
<BR>
<BR> The callback argument specifies a function that returns a
 whitespace string or NULL before and after each element. If
 MXML_NO_CALLBACK is specified, whitespace will only be added before
 MXML_TEXT nodes with leading whitespace and before attribute names
 inside opening element tags.</P>
<H3 class="function"><A name="mxmlSaveFd">mxmlSaveFd</A></H3>
<P class="description">Save an XML tree to a file descriptor.</P>
<P class="code"> int mxmlSaveFd (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int fd,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_save_cb_t">mxml_save_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to write</DD>
<DT>fd</DT>
<DD class="description">File descriptor to write to</DD>
<DT>cb</DT>
<DD class="description">Whitespace callback or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on error.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The callback argument specifies a function that
 returns a whitespace string or NULL before and after each element. If
 MXML_NO_CALLBACK is specified, whitespace will only be added before
 MXML_TEXT nodes with leading whitespace and before attribute names
 inside opening element tags.</P>
<H3 class="function"><A name="mxmlSaveFile">mxmlSaveFile</A></H3>
<P class="description">Save an XML tree to a file.</P>
<P class="code"> int mxmlSaveFile (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;FILE *fp,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_save_cb_t">mxml_save_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to write</DD>
<DT>fp</DT>
<DD class="description">File to write to</DD>
<DT>cb</DT>
<DD class="description">Whitespace callback or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on error.</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The callback argument specifies a function that
 returns a whitespace string or NULL before and after each element. If
 MXML_NO_CALLBACK is specified, whitespace will only be added before
 MXML_TEXT nodes with leading whitespace and before attribute names
 inside opening element tags.</P>
<H3 class="function"><A name="mxmlSaveString">mxmlSaveString</A></H3>
<P class="description">Save an XML node tree to a string.</P>
<P class="code"> int mxmlSaveString (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;char *buffer,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int bufsize,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_save_cb_t">mxml_save_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to write</DD>
<DT>buffer</DT>
<DD class="description">String buffer</DD>
<DT>bufsize</DT>
<DD class="description">Size of string buffer</DD>
<DT>cb</DT>
<DD class="description">Whitespace callback or MXML_NO_CALLBACK</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Size of string</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">This function returns the total number of bytes
 that would be required for the string but only copies (bufsize - 1)
 characters into the specified buffer.
<BR>
<BR> The callback argument specifies a function that returns a
 whitespace string or NULL before and after each element. If
 MXML_NO_CALLBACK is specified, whitespace will only be added before
 MXML_TEXT nodes with leading whitespace and before attribute names
 inside opening element tags.</P>
<H3 class="function"><A NAME="8_2_56">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlSetCDATA">mxmlSetCDATA</A></A></H3>
<P class="description">Set the element name of a CDATA node.</P>
<P class="code"> int mxmlSetCDATA (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *data
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>data</DT>
<DD class="description">New data string</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not a CDATA element node.</P>
<H3 class="function"><A NAME="8_2_57">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.1&nbsp;<A name="mxmlSetCustom">mxmlSetCustom</A></A></H3>
<P class="description">Set the data and destructor of a custom data
 node.</P>
<P class="code"> int mxmlSetCustom (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;void *data,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_custom_destroy_cb_t">mxml_custom_destroy_cb_t</A>
 destroy
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>data</DT>
<DD class="description">New data pointer</DD>
<DT>destroy</DT>
<DD class="description">New destructor function</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not a custom node.</P>
<H3 class="function"><A name="mxmlSetCustomHandlers">
mxmlSetCustomHandlers</A></H3>
<P class="description">Set the handling functions for custom data.</P>
<P class="code"> void mxmlSetCustomHandlers (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_custom_load_cb_t">mxml_custom_load_cb_t</A>
 load,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_custom_save_cb_t">mxml_custom_save_cb_t</A> save
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>load</DT>
<DD class="description">Load function</DD>
<DT>save</DT>
<DD class="description">Save function</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The load function accepts a node pointer and a
 data string and must return 0 on success and non-zero on error.
<BR>
<BR> The save function accepts a node pointer and must return a malloc'd
 string on success and NULL on error.</P>
<H3 class="function"><A name="mxmlSetElement">mxmlSetElement</A></H3>
<P class="description">Set the name of an element node.</P>
<P class="code"> int mxmlSetElement (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *name
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>name</DT>
<DD class="description">New name string</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it is not an element
 node.</P>
<H3 class="function"><A name="mxmlSetErrorCallback">mxmlSetErrorCallback</A>
</H3>
<P class="description">Set the error message callback.</P>
<P class="code"> void mxmlSetErrorCallback (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_error_cb_t">mxml_error_cb_t</A> cb
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>cb</DT>
<DD class="description">Error callback function</DD>
</DL>
<H3 class="function"><A name="mxmlSetInteger">mxmlSetInteger</A></H3>
<P class="description">Set the value of an integer node.</P>
<P class="code"> int mxmlSetInteger (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int integer
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>integer</DT>
<DD class="description">Integer value</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not an integer node.</P>
<H3 class="function"><A name="mxmlSetOpaque">mxmlSetOpaque</A></H3>
<P class="description">Set the value of an opaque node.</P>
<P class="code"> int mxmlSetOpaque (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *opaque
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>opaque</DT>
<DD class="description">Opaque string</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not an opaque node.</P>
<H3 class="function"><A name="mxmlSetReal">mxmlSetReal</A></H3>
<P class="description">Set the value of a real number node.</P>
<P class="code"> int mxmlSetReal (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;double real
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>real</DT>
<DD class="description">Real number value</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not a real number node.</P>
<H3 class="function"><A name="mxmlSetText">mxmlSetText</A></H3>
<P class="description">Set the value of a text node.</P>
<P class="code"> int mxmlSetText (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int whitespace,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *string
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>whitespace</DT>
<DD class="description">1 = leading whitespace, 0 = no whitespace</DD>
<DT>string</DT>
<DD class="description">String</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not a text node.</P>
<H3 class="function"><A name="mxmlSetTextf">mxmlSetTextf</A></H3>
<P class="description">Set the value of a text node to a formatted
 string.</P>
<P class="code"> int mxmlSetTextf (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int whitespace,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;const char *format,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;...
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>whitespace</DT>
<DD class="description">1 = leading whitespace, 0 = no whitespace</DD>
<DT>format</DT>
<DD class="description">Printf-style format string</DD>
<DT>...</DT>
<DD class="description">Additional arguments as needed</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The node is not changed if it (or its first child)
 is not a text node.</P>
<H3 class="function"><A NAME="8_2_66">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.7&nbsp;<A name="mxmlSetUserData">mxmlSetUserData</A></A></H3>
<P class="description">Set the user data pointer for a node.</P>
<P class="code"> int mxmlSetUserData (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;void *data
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Node to set</DD>
<DT>data</DT>
<DD class="description">User data pointer</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">0 on success, -1 on failure</P>
<H3 class="function"><A NAME="8_2_67">
<!--span class=&quot;info&quot;-->
&nbsp;Mini-XML 2.3&nbsp;<A name="mxmlSetWrapMargin">mxmlSetWrapMargin</A></A></H3>
<P class="description">Set the wrap margin when saving XML data.</P>
<P class="code"> void mxmlSetWrapMargin (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int column
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>column</DT>
<DD class="description">Column for wrapping, 0 to disable wrapping</DD>
</DL>
<H4 class="discussion">Discussion</H4>
<P class="discussion">Wrapping is disabled when &quot;column&quot; is 0.</P>
<H3 class="function"><A name="mxmlWalkNext">mxmlWalkNext</A></H3>
<P class="description">Walk to the next logical node in the tree.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlWalkNext (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int descend
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Current node</DD>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>descend</DT>
<DD class="description">Descend into tree - MXML_DESCEND,
 MXML_NO_DESCEND, or MXML_DESCEND_FIRST</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Next node or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The descend argument controls whether the first
 child is considered to be the next node. The top node argument
 constrains the walk to the node's children.</P>
<H3 class="function"><A name="mxmlWalkPrev">mxmlWalkPrev</A></H3>
<P class="description">Walk to the previous logical node in the tree.</P>
<P class="code"> <A href="#mxml_node_t">mxml_node_t</A> *mxmlWalkPrev (
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *node,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;<A href="#mxml_node_t">mxml_node_t</A> *top,
<BR> &nbsp;&nbsp;&nbsp;&nbsp;int descend
<BR> );</P>
<H4 class="parameters">Parameters</H4>
<DL>
<DT>node</DT>
<DD class="description">Current node</DD>
<DT>top</DT>
<DD class="description">Top node</DD>
<DT>descend</DT>
<DD class="description">Descend into tree - MXML_DESCEND,
 MXML_NO_DESCEND, or MXML_DESCEND_FIRST</DD>
</DL>
<H4 class="returnvalue">Return Value</H4>
<P class="description">Previous node or NULL</P>
<H4 class="discussion">Discussion</H4>
<P class="discussion">The descend argument controls whether the previous
 node's last child is considered to be the previous node. The top node
 argument constrains the walk to the node's children.</P>
<H2 class="title"><A name="TYPES">Data Types</A></H2>
<H3 class="typedef"><A name="mxml_custom_destroy_cb_t">
mxml_custom_destroy_cb_t</A></H3>
<P class="description">Custom data destructor</P>
<P class="code"> typedef void (*mxml_custom_destroy_cb_t)(void *);</P>
<H3 class="typedef"><A name="mxml_custom_load_cb_t">
mxml_custom_load_cb_t</A></H3>
<P class="description">Custom data load callback function</P>
<P class="code"> typedef int (*mxml_custom_load_cb_t)(<A href="#mxml_node_t">
mxml_node_t</A> *, const char *);</P>
<H3 class="typedef"><A name="mxml_custom_save_cb_t">
mxml_custom_save_cb_t</A></H3>
<P class="description">Custom data save callback function</P>
<P class="code"> typedef char *(*mxml_custom_save_cb_t)(<A href="#mxml_node_t">
mxml_node_t</A> *);</P>
<H3 class="typedef"><A name="mxml_entity_cb_t">mxml_entity_cb_t</A></H3>
<P class="description">Entity callback function</P>
<P class="code"> typedef int (*mxml_entity_cb_t)(const char *);</P>
<H3 class="typedef"><A name="mxml_error_cb_t">mxml_error_cb_t</A></H3>
<P class="description">Error callback function</P>
<P class="code"> typedef void (*mxml_error_cb_t)(const char *);</P>
<H3 class="typedef"><A name="mxml_index_t">mxml_index_t</A></H3>
<P class="description">An XML node index.</P>
<P class="code"> typedef struct <A href="#mxml_index_s">mxml_index_s</A>
 mxml_index_t;</P>
<H3 class="typedef"><A name="mxml_load_cb_t">mxml_load_cb_t</A></H3>
<P class="description">Load callback function</P>
<P class="code"> typedef <A href="#mxml_type_t">mxml_type_t</A>
 (*mxml_load_cb_t)(<A href="#mxml_node_t">mxml_node_t</A> *);</P>
<H3 class="typedef"><A name="mxml_node_t">mxml_node_t</A></H3>
<P class="description">An XML node.</P>
<P class="code"> typedef struct <A href="#mxml_node_s">mxml_node_s</A>
 mxml_node_t;</P>
<H3 class="typedef"><A name="mxml_save_cb_t">mxml_save_cb_t</A></H3>
<P class="description">Save callback function</P>
<P class="code"> typedef const char *(*mxml_save_cb_t)(<A href="#mxml_node_t">
mxml_node_t</A> *, int);</P>
<H3 class="typedef"><A name="mxml_sax_cb_t">mxml_sax_cb_t</A></H3>
<P class="description">SAX callback function</P>
<P class="code"> typedef void (*mxml_sax_cb_t)(<A href="#mxml_node_t">
mxml_node_t</A> *, mxml_sax_event_t, void *);</P>
<H3 class="typedef"><A name="mxml_sax_event_t">mxml_sax_event_t</A></H3>
<P class="description">SAX event type.</P>
<P class="code"> typedef enum <A href="#mxml_sax_event_e">
mxml_sax_event_e</A> mxml_sax_event_t;</P>
<H3 class="typedef"><A name="mxml_type_t">mxml_type_t</A></H3>
<P class="description">The XML node type.</P>
<P class="code"> typedef enum <A href="#mxml_type_e">mxml_type_e</A>
 mxml_type_t;</P>
<H2 class="title"><A name="ENUMERATIONS">Constants</A></H2>
<H3 class="enumeration"><A name="mxml_sax_event_e">mxml_sax_event_e</A></H3>
<P class="description">SAX event type.</P>
<H4 class="constants">Constants</H4>
<DL>
<DT>MXML_SAX_CDATA</DT>
<DD class="description">CDATA node</DD>
<DT>MXML_SAX_COMMENT</DT>
<DD class="description">Comment node</DD>
<DT>MXML_SAX_DATA</DT>
<DD class="description">Data node</DD>
<DT>MXML_SAX_DIRECTIVE</DT>
<DD class="description">Processing directive node</DD>
<DT>MXML_SAX_ELEMENT_CLOSE</DT>
<DD class="description">Element closed</DD>
<DT>MXML_SAX_ELEMENT_OPEN</DT>
<DD class="description">Element opened</DD>
</DL>
<H3 class="enumeration"><A name="mxml_type_e">mxml_type_e</A></H3>
<P class="description">The XML node type.</P>
<H4 class="constants">Constants</H4>
<DL>
<DT>MXML_CUSTOM
<!--span class=&quot;info&quot;-->
 &nbsp;Mini-XML 2.1&nbsp;</DT>
<DD class="description">Custom data</DD>
<DT>MXML_ELEMENT</DT>
<DD class="description">XML element with attributes</DD>
<DT>MXML_IGNORE
<!--span class=&quot;info&quot;-->
 &nbsp;Mini-XML 2.3&nbsp;</DT>
<DD class="description">Ignore/throw away node</DD>
<DT>MXML_INTEGER</DT>
<DD class="description">Integer value</DD>
<DT>MXML_OPAQUE</DT>
<DD class="description">Opaque string</DD>
<DT>MXML_REAL</DT>
<DD class="description">Real value</DD>
<DT>MXML_TEXT</DT>
<DD class="description">Text fragment</DD>
</DL>
</DIV><HR NOSHADE>
<H1 align="right"><A name="SCHEMA"><IMG align="right" alt="D" height="100"
hspace="10" src="D.gif" width="100"></A>XML Schema</H1>
<P>This appendix provides the XML schema that is used for the XML files
 produced by <TT>mxmldoc</TT>. This schema is available on-line at:</P>
<PRE>
    http://www.msweet.org/schema/mxmldoc.xsd
</PRE>
<H2><A NAME="9_1">mxmldoc.xsd</A></H2>
<PRE><SMALL>
&lt;?xml version=&quot;1.0&quot;?&gt;
&lt;xsd:schema xmlns:xsd=&quot;http://www.w3.org/2001/XMLSchema&quot;&gt;
  &lt;xsd:annotation&gt;
    &lt;xsd:documentation xml:lang=&quot;en&quot;&gt;
      Mini-XML 2.9 documentation schema for mxmldoc output.
      Copyright 2003-2014 by Michael Sweet.
    &lt;/xsd:documentation&gt;
  &lt;/xsd:annotation&gt;

  &lt;!-- basic element definitions --&gt;
  &lt;xsd:element name=&quot;argument&quot; type=&quot;argumentType&quot;/&gt;
  &lt;xsd:element name=&quot;class&quot; type=&quot;classType&quot;/&gt;
  &lt;xsd:element name=&quot;constant&quot; type=&quot;constantType&quot;/&gt;
  &lt;xsd:element name=&quot;description&quot; type=&quot;xsd:string&quot;/&gt;
  &lt;xsd:element name=&quot;enumeration&quot; type=&quot;enumerationType&quot;/&gt;
  &lt;xsd:element name=&quot;function&quot; type=&quot;functionType&quot;/&gt;
  &lt;xsd:element name=&quot;mxmldoc&quot; type=&quot;mxmldocType&quot;/&gt;
  &lt;xsd:element name=&quot;namespace&quot; type=&quot;namespaceType&quot;/&gt;
  &lt;xsd:element name=&quot;returnvalue&quot; type=&quot;returnvalueType&quot;/&gt;
  &lt;xsd:element name=&quot;seealso&quot; type=&quot;identifierList&quot;/&gt;
  &lt;xsd:element name=&quot;struct&quot; type=&quot;structType&quot;/&gt;
  &lt;xsd:element name=&quot;typedef&quot; type=&quot;typedefType&quot;/&gt;
  &lt;xsd:element name=&quot;type&quot; type=&quot;xsd:string&quot;/&gt;
  &lt;xsd:element name=&quot;union&quot; type=&quot;unionType&quot;/&gt;
  &lt;xsd:element name=&quot;variable&quot; type=&quot;variableType&quot;/&gt;

  &lt;!-- descriptions of complex elements --&gt;
  &lt;xsd:complexType name=&quot;argumentType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;default&quot; type=&quot;xsd:string&quot; use=&quot;optional&quot;/&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
    &lt;xsd:attribute name=&quot;direction&quot; type=&quot;direction&quot; use=&quot;optional&quot;
     default=&quot;I&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;classType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
	&lt;xsd:element ref=&quot;class&quot;/&gt;
	&lt;xsd:element ref=&quot;enumeration&quot;/&gt;
	&lt;xsd:element ref=&quot;function&quot;/&gt;
	&lt;xsd:element ref=&quot;struct&quot;/&gt;
	&lt;xsd:element ref=&quot;typedef&quot;/&gt;
	&lt;xsd:element ref=&quot;union&quot;/&gt;
	&lt;xsd:element ref=&quot;variable&quot;/&gt;
      &lt;/xsd:choice&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
    &lt;xsd:attribute name=&quot;parent&quot; type=&quot;xsd:string&quot; use=&quot;optional&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;constantType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;enumerationType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;constant&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;unbounded&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;functionType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;returnvalue&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;argument&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;unbounded&quot;/&gt;
      &lt;xsd:element ref=&quot;seealso&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
    &lt;xsd:attribute name=&quot;scope&quot; type=&quot;scope&quot; use=&quot;optional&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;mxmldocType&quot;&gt;
    &lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
      &lt;xsd:element ref=&quot;class&quot;/&gt;
      &lt;xsd:element ref=&quot;enumeration&quot;/&gt;
      &lt;xsd:element ref=&quot;function&quot;/&gt;
      &lt;xsd:element ref=&quot;namespace&quot;/&gt;
      &lt;xsd:element ref=&quot;struct&quot;/&gt;
      &lt;xsd:element ref=&quot;typedef&quot;/&gt;
      &lt;xsd:element ref=&quot;union&quot;/&gt;
      &lt;xsd:element ref=&quot;variable&quot;/&gt;
    &lt;/xsd:choice&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;namespaceType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
	&lt;xsd:element ref=&quot;class&quot;/&gt;
	&lt;xsd:element ref=&quot;enumeration&quot;/&gt;
	&lt;xsd:element ref=&quot;function&quot;/&gt;
	&lt;xsd:element ref=&quot;struct&quot;/&gt;
	&lt;xsd:element ref=&quot;typedef&quot;/&gt;
	&lt;xsd:element ref=&quot;union&quot;/&gt;
	&lt;xsd:element ref=&quot;variable&quot;/&gt;
      &lt;/xsd:choice&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;returnvalueType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
    &lt;/xsd:sequence&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;structType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
	&lt;xsd:element ref=&quot;variable&quot;/&gt;
	&lt;xsd:element ref=&quot;function&quot;/&gt;
      &lt;/xsd:choice&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;typedefType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;unionType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;variable&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;xsd:complexType name=&quot;variableType&quot;&gt;
    &lt;xsd:sequence&gt;
      &lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
      &lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
    &lt;/xsd:sequence&gt;
    &lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
  &lt;/xsd:complexType&gt;

  &lt;!-- data types --&gt;
  &lt;xsd:simpleType name=&quot;direction&quot;&gt;
    &lt;xsd:restriction base=&quot;xsd:string&quot;&gt;
      &lt;xsd:enumeration value=&quot;I&quot;/&gt;
      &lt;xsd:enumeration value=&quot;O&quot;/&gt;
      &lt;xsd:enumeration value=&quot;IO&quot;/&gt;
    &lt;/xsd:restriction&gt;
  &lt;/xsd:simpleType&gt;

  &lt;xsd:simpleType name=&quot;identifier&quot;&gt;
    &lt;xsd:restriction base=&quot;xsd:string&quot;&gt;
      &lt;xsd:pattern value=&quot;[a-zA-Z_(.]([a-zA-Z_(.,)* 0-9])*&quot;/&gt;
    &lt;/xsd:restriction&gt;
  &lt;/xsd:simpleType&gt;

  &lt;xsd:simpleType name=&quot;identifierList&quot;&gt;
    &lt;xsd:list itemType=&quot;identifier&quot;/&gt;
  &lt;/xsd:simpleType&gt;

  &lt;xsd:simpleType name=&quot;scope&quot;&gt;
    &lt;xsd:restriction base=&quot;xsd:string&quot;&gt;
      &lt;xsd:enumeration value=&quot;&quot;/&gt;
      &lt;xsd:enumeration value=&quot;private&quot;/&gt;
      &lt;xsd:enumeration value=&quot;protected&quot;/&gt;
      &lt;xsd:enumeration value=&quot;public&quot;/&gt;
    &lt;/xsd:restriction&gt;
  &lt;/xsd:simpleType&gt;
&lt;/xsd:schema&gt;
</SMALL></PRE>
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